Daisuke Hiyama

Daisuke Hiyama was one of the antagonists from the "Arifureta Shokugyō de Sekai Saikyō" series.

He was once the leader of the gang who would often harass his mortal enemy, Hajime. He was also the one responsible for his fall in the Great Orcus Labyrinth.

During the war in Heiligh Kingdom, he and Eri betrayed the kingdom and their classmates. When Hajime arrived, he was betrayed by Eri and died at Hajime's hands by feeding him to the monsters for his stubbornly betrayal and temporarily murder on Kaori Shirasaki.

Appearance
Daisuke is young man with with long brown hair.

The moment of his death, Hiyama's left arm was chewed off.

Personality
"I’ll kill you! No matter what ish takesh, I swear I'll kill you!"

- Daisuke's final words to Hajime

Due to Hajime's otaku nature as well as the attention that Kaori gave him, Daisuke tended to bully Hajime frequently. After being transported to Tortus and finding out that Hajime's stats were below his, his way of bullying rose to an extent where he started using violence and justified it as a part of their training. When he saw Kaori walk out of Hajime's room in the middle of the night, his jealousy towards him rose even more to a point where he plotted against him in the middle of a chaos inside the Great Orcus Labyrinth.

Daisuke was shown to be a disloyal individual as he was willing to abandon others if necessary. He was even willing to join the enemies' side guaranteed his safety. He also had a manipulative nature as he tried to exploit Kaori's kindness and Kouki childish sense of justice to have his classmates forgive him for his actions. After learning of Hajime survival, he tried to manipulate Hajime by feigning an apology for him to forget what he did to him and his mistreatment in the hope for Hajime to come back to the "Hero Party", purely so that he would get close to Kaori. But only for his early plan to kill Hajime before to be backfired on him, which caused Hiyama to fall into insanity to become a deranged lunatic. In his selfishness lust for Kaori, he never cares for his gang when he never considered them as his friends but rather deemed them as tools. He has no qualms or hesitations for allowing Eri to kill Kondou.

Hiyama is an incapable pervert who was obsessed with Kaori and would do anything just to make her his girlfriend no matter what but always failed even when she left to travel with Hajime. He was also willing to collaborate with Eri to plot against their classmates just to ensure that he would obtain Kaori even if it meant on killing her. Unfortunately, his stubbornly obsession for Kaori had only gotten himself killed when Hajime brutalized Hiyama and fed him to the approaching monsters.

In spite of his manipulation, Hiyama can also be easily manipulated by those are greater than himself, such as when Eri blackmailed him to take part in her schemes before betraying him after he outlived his usefulness and seeing how weak Hiyama is when Hajime brutalized him.

He was reduced to a coward. Despite of his stat boost slightly, he is an incompetent weakling who is afraid of anyone who are very powerful enemies and let those who are stronger than himself deal with them as he stupidly seeks out enemies who are weaker than him. But due to Hajime's mutations and before Hiyama's death, there aren't any weaklings left for Hiyama to seek out as he was one of the weakest after Hajime obtained strength far beyond than all of his classmates (including Kouki). After seeing Hajime return, Hiyama shown in fear in getting blown into the trench and witnessing him kill Cattleya without any hesitation or efforts as well as telling Kouki that he would kill anyone, including his former classmates if they stood in his way. After Kaori joined Hajime to his party, Hiyama became even more afraid of Hajime after seeing how easily he defeated Kouki in an unarmed duel without any difficulties. Hiyama is also afraid of death by Hajime's hands knowing of his life would be in jeopardy if he laid a finger on Hajime's lovers including Kaori, Hajime will kill him in coldblooded. While Hajime and his party are preparing to leave for another journey, Hiyama desperately attempted to manipulate Hajime by feigning an apology to him so he would forgive him, return to the "Hero Party", and forget about his past mistreatment that he and his gang gave him months ago, purely so that he could get close to Kaori. However, he was left to be terrified even more when Hajime not only refused to forgive him, but revealed he didn't even cared about his previously mistreatment which doesn't hold any means to him anymore as he could see the madness and lack of sincerity in Hiyama's eyes by calling him and his gang worthless and weak. When Hajime revealed he was already aware of his actions and exposed Hiyama as the one responsible for his "fall" caused Hiyama fell into a complete mental breakdown and became a deranged lunatic. Unlike his former gang who easily give up their pursuit on Hajime and their chance for Kaori's attractions, Hiyama was the only one who is very persistent for refusing to give up on Kaori's attraction due to his hatred toward Hajime grew even worse than usual. Despite it, Hiyama doesn't have the courage or strength against Hajime when it's already too late to kill Hajime this time as he had become more powerful even more than Kouki.

He also became afraid and enraged at the fact that not only the once weak Hajime gained strength that holds far more superiority than his own, but he will never get Kaori to be his girlfriend for the rest of his life. This caused him to fall into insanity to become a crazy lunatic, as he was willing to take part in Eri's plan if it meant he could have Kaori, even going as far as to kill her himself so Eri could turn Kaori into his undead slave. When Hajime ruined Hiyama's only chance to make Kaori as his girlfriend and being betrayed by Eri, Hiyama badmouthed Hajime for ruining his chance even when he was severely injured, Hiyama has proved to be more of a persistently sore loser when he attacked Hajime with a fireball before he could kill Eri despite of her betrayal towards Hiyama and continually blamed Hajime for always getting Kaori's attractions and bragged his last words of he will kill him no matter what it takes when Hiyama lost what left of his sanity and his only chance for survival as well Hajime told Hiyama his claim was nothing more but an empty threat as he will not expected the latter to survive as Hajime making Hiyama's death in more painful and despair when Hajime kicked Hiyama to the courtyard as the monsters are approaching as Hajime expected. While severely injured and unable to move or fighting back, Hiyama is also terrified of the monsters as they are shown up to eat him alive as he screamed in agony and terror when they are continually devouring him as well tearing him apart after Hajime walked away and abandoned Hiyama to his miserable death.

However, due to his lack of responsibilities and have always inflicting pain on people back at school and Tortus, it was Hiyama's ambitions and lusts for Kaori as well as his tremendous arrogance has lead himself nothing but to his own failures even when he was betrayed by Eri due to him being too weak against Hajime as well his own downfall and paid the ultimate price that he will never see Japan or his family again when he was easily defeated by Hajime and kicked out to the courtyard to be eaten by the monsters and abandoned by Hajime placing an end to both of Hiyama's torments and his stubbornly betrayed of satisfying his lust for Kaori.

Biography
Daisuke was the leader of the gang that constantly harass Hajime. Even after the summoning and the fact that he had superior stats than Hajime, the harassment became worse as he begun using violence during training sessions by disguising it as a part of their training.

During their exploration into the Great Orcus Labyrinth, Daisuke tried to take a giant glanz crystal in an attempt to impress Kaori, but it turned out to be a trap and transported everyone to the 65th floor. They soon found themselves at a stone bridge and was trapped between a behemoth and an army of traum soldiers. At the end of the battle, he attacked Hajime while everyone was busy bombarding the behemoth and caused him to fall off the bridge. He later convinced himself that nobody was aware of his actions but eventually he was blackmailed by a fellow classmate and manipulated him by promising to give him Kaori as a reward if he helped her with her plans.

Upon learning of Hajime's survival, Daisuke completely denied it until he saw Kaori cling to him. When Hajime killed Cattleya, Hiyama shown in fear and terrified of Hajime. His desperation grew when Kaori decided to join Hajime to stay by his side but was unable to convince her otherwise. This resulted in him begging Hajime instead and asked him for forgiveness to come back. However, Hajime refused his offer by subtly dropping hints that he knew who was the culprit behind his fall which left him in shock as Hajime and the others leave. Daisuke completely broke down afterward but was reassured by Eri that he could easily get her back.

Betrayal and Death
Daisuke participated in killing the kingdom's knights and was involved in killing the Knight Commander Meld Loggins. When the demons invaded the Heiligh Kingdom, all of the students discovered that Daisuke and Eri were traitors when Eri commanded her army of undead knights to subdue her classmates. Unfortunately, Daisuke's betrayal was not discovered until he murdered Kaori by stabbing her heart.

When Eri attempting to used her "Blind Soul" on Kaori's corpse, Hajime arrived and disabled her spell caused Hiyama to be angry. When began to fight, Hajime kicked Hiyama straight to the wall damaging his internal organs and breaking his bones. After their plans failed, Eri has betrayed Hiyama when she offer Hajime to make Kaori as his slave instead.

He attacked Hajime with a fireball (but has no effect on him at all) and was later beaten by Hajime and kicked Hiyama out of the courtyard with a group of demonic beasts, where he died and abandoned by Hajime and the others to his miserable death after he was half-eaten alive by the demon army's monsters.

Legacy
Later, after the war in Heiligh Kingdom, what's left of Hiyama's dissected corpse was discovered and later buried unceremoniously to an unmarked grave. Hajime enlightened his old classmates that Hiyama was the one who caused him to fall intentionally, not accidentally which caused the "Hero Party" to retain their bitter memories of their hatred toward Hiyama as a creep while back at school and a selfish, deluded traitor as they have no actual sympathies for him the traitorous idiot. While Hiyama's so-called 'friends', Yoshiki and Shinji forgave themselves to Hajime and swore to never cross him or harming his comrades that includes Kaori only for the latter accepting them as the annoying stooges after they've pledged their newly loyalty to Hajime. Even when returning to Japan, his classmate won't forget of Hiyama's betrayal and won't respects for him as they will forever remember Daisuke Hiyama as a deluded traitor.

After the remaining students returned to Earth, Hiyama's family learned of Hiyama's death through Hajime and Aiko and attempted to get revenge on Hajime for killing him, but suffered a complete breakdown by mysterious means from Hajime in retaliation for their efforts.

Former Allies

 * Ehit: Though having never met face to face, Ehit is amused by Daisuke. Daisuke works for the false god along with Eri to kill all of his classmates and reanimate them as their undead slaves. However, Ehit has shown disappointment of Hiyama's death when witnessing how pathetically weak Hiyama is after Hajime easily defeated him.
 * Eri Nakamura - one of his fellow classmates and his fellow traitor. After she discovers that Hiyama was the one who caused Hajime's accident which turned him into an unstoppable monster as she uses this knowledge to blackmail him into working with her but failed due to Hajime's return. For Eri revealed Hiyama was just a pawn to her and not her ally. Witnessing Hiyama being too weak against Hajime, Eri turned her back on Hiyama and betrayed him after he outlived his usefulness when trying to bribe Hajime into making Kaori his slave instead. After Hiyama was beaten up and left to die by Hajime, Eri didn't even bother to try to go back and help him when she let Hiyama die a miserable death due to him no longer of any use to her future plans.

Enemies

 * Hajime Nagumo - Daisuke's mortal enemy and former bully victim from the past, but now his direct murderer. Daisuke hated the fact that Kaori was interested in Hajime and not him so he decided to make Hajime's life as miserable as possible. This would later escalate to physical violence after they were transferred to Tortus and Daisuke obtained a strong combat job compared to Hajime's non-combat job. It would escalate to attempted murder after he saw Kaori coming out of Hajime's room one night. Later, after finding out Hajime had survived the fall into the abyss, he begins to feel scared and intimidated that his plan will be exposed and witnessing Hajime's monstrous strength. After Hajime murdered Cattleya, Hiyama is terrified of Hajime of his demonic powers and ruthlessness. When witnessing Hajime telling Kouki of he will kill him even if they were classmates, Hiyama showed greater fear. When Kaori decided to travel with Hajime, Hiyama's fears had become even worse when witnessing Hajime easily defeating Kouki in an unarmed duel of Kouki's failed attempt to take Hajime's party (harem) without hardly any effort. When Hajime and his party prepare to leave for their journey, he desperately along with his gang pleaded Hajime to rejoin the Hero party (just so he would be closer to Kaori) while feigning an apology for the mistreatment they gave him in the past but in response, Hajime told Hiyama that he doesn't even care about his past mistreatment anymore and gave him hints that he knows what exactly happened by calling Hiyama and his gang to be worthless and weak, subtly warning Daisuke to stay out of his way if Daisuke wishes to stay alive causing Hiyama to fall into insanity due to not only Hajime having strength far more superior than his own but lost his chance of ever getting Kaori to become his girlfriend. Even in his insanity, he feared if he harmed Hajime's harem (including Kaori), he will be killed by Hajime in cold blood. Later on, after he temporarily killed Kaori and Eri's attempted "Bind Soul" failed, because of Hajime's arrival, Daisuke went mad but was sent flying towards the wall and severely injured by Hajime. When Hajime was about to kill Eri despite her betrayal toward Hiyama, Hiyama persistently attacked Hajime with a fireball (but had no effect on him) while badmouthing Hajime for Daisuke's own failure to make Kaori his girlfriend, but that only enraged Hajime even more as he brutally thrashed Daisuke breaking nearly all of Hiyama's bones and damaging his internal organs. While Hajime gripped the severely wounded Hiyama at his neck, Hiyama blamed Hajime for always having Kaori's attractions but Hajime responded as he told Hiyama to stop blaming others when they receive the affections of beautiful girls even if they're idols. Hajime has sadistically tormented Hiyama as the latter considered his level to be a stoop while back at school and on Tortus due to his lack of responsibilities and always sitting around inflicting pain on people he deemed weaker than himself as Hajime called him a weak selfish loser which is the main reason Kaori will never fall in love with Hiyama and will never become his girlfriend for the rest of his worthless life as Hiyama brought nothing but his own failures and downfall. When Daisuke insolently bragged his final words that he will kill Hajime and make Kaori his girlfriend no matter what it takes, Hajime having quite enough of Hiyama's persistence and empty threats as he put Hiyama out of his misery by making his death more painful by kicking him out into the courtyard full of monsters where he was left to be eaten alive with Hajime watching pitilessly as the helpless, injured Daisuke was screaming in terror and agony then walked away abandoning Hiyama to his death to confront Eri of her betrayals after Hajime got revenge on Daisuke for what he did to Kaori.
 * Kaori Shirasaki - Daisuke was obsessed with Kaori to the point where he would do anything just to obtain her as his girlfriend but failed due to not only Hajime's survival but his monstrous strength as well. He was even willing kill to her so that Eri could turn her body into an undead puppet who would listen to his every command but failed due to Hajime's arrival. Hajime killed Hiyama to only avenge Kaori. After Daisuke's death and Kaori's revival, Hajime revealed to her of Daisuke's betrayal and he killed him for his stubborn betrayal.
 * Reichi Kondou (deceased), Yoshiki Saitou & Shinji Nakano - his three former friends and partners in crime. Alongside them, he would bully Hajime as much as possible mostly because they liked Kaori as well from the past. But now they are terrified of Hajime after he murdered Cattleya not only for his monstrous strength and ruthlessness but having lost Kaori in the process due to her love for Hajime alone. Unlike his so-called "friends" who had easily given up for Kaori's attraction and pursuit of Hajime, Hiyama persistently refused to give up on Kaori when he allied with Eri. In truth, Hiyama never really cared about his "friends" as they were nothing but mere tools in order to claim Kaori for himself and betrayed them when he let Eri killed Kondou. After Hajime killed both Kondou and Daisuke in coldblood, two of Daisuke's so-called "friends" Nakano and Saitou were terrified to cross Hajime and not wanting to meet the same fate as Daisuke, they apologized to Hajime and promising to never get in his way or harming his comrades (harem) including Kaori. After returning to Japan, Nakano and Saitou are no longer loyal to Hiyama as they pledged their newly loyalty to Hajime.
 * Other Classmates - While most of the other classmates ignored Daisuke bullying Hajime. But in truth, everybody hated him and his gang deeply for their selfish lust for Kaori and for having bullied many other people besides Hajime. After Hajime's alleged death, they show their animosity towards him due to it being his actions that transported them to the labyrinth floor where it took place. Though when Hiyama put up a false act of remorse in front of Kouki and Kaori, they readily forgave him due to Kouki's misguided justice and Kaori's immense, kindness as well as their overwhelming popularity with their classmates, with the exception of Shizuku, who had some doubts about Hiyama's deception and manipulation, though she chose to put those doubts aside for the sake of looking out for her close friends. After his betrayal was revealed, as well his desire to turn Kaori their beloved class idol into his undead slave, it left an immense and permanent negative impact on all of his classmates, particularly Kaori's closest friends, Shizuku, Suzu, Ryuutaro, and most of all Kouki, whom had placed misguided trust in Hiyama. When Kouki furiously accused and blamed Hajime for not warning them of Ehit's schemes earlier in the Orcus Dungeon that had allowed Eri and Hiyama to betray them, Hajime coldly stated it is their careless optimism and delusional idealism at fault that they had nearly died and reminded them it is precisely their ridiculously naive expectations of that fellow classmates are always obligated to help and protect each other is what had allowed even an idiot like Hiyama to manipulate and backstab them without even realizing it until it was too late, a fact that none of them could deny due to them never having helped Hajime from getting bullied by Hiyama in the past . Having personally witnessed Hiyama's horrific fate of being brutalized by Hajime before being thrown to be eaten alive by monsters served as a proven example of Hajime's previous warning and also a strong reminder of the terrifying extent of Hajime's savage brutality as they are terror stricken of being subjected to the same fate as Hiyama if they dare to cross Hajime or harm his comrades (harem) including Kaori, even Kouki despite his dedication to justice and disgust of Hajime's cold and pragmatic disregard for morality did not have the courage to completely go against Hajime due to his immense power and ruthlessness. None of them (except for Kouki due to his delusions) condemned Hajime for murdering Hiyama or continue to follow Kouki's delusional justice. After Hajime enlightened them of Hiyama's responsibility for his "fall" which wasn't an accident, they continue to hold bitter memories of how they hated Daisuke for what he had done as they considered him as nothing more than a creep while back in school and branded him as a selfish and despicable traitor on Tortus for his betrayal. In the funeral ceremony for him, not a single one of his classmates had any actual sympathies for him when they're pretended to mourn for him due to his actions and simply went for common courtesy than anything. Even when they returned to Japan, they still won't forget their bitter memories of him they will never forgive or sympathize with Hiyama and will always remember him as a traitor.
 * Hajime's party - Hiyama met Hajime's party when they came to save him and the Hero's party from Cattleya. The first girl at Hajime's party who he had an interaction with was Yue, when Hiyama was denying that Hajime was alive, Yue threw water on him to silence him, telling him that he was being annoying, this made Hiyama turn fearful towards her, however it can be implied that Hiyama during those moments had an attraction towards Yue like his other companions. While Hiyama had some fear of Shea seeing how she could get rid of the monsters, Hiyama's attraction to Yue would quickly disappear when he saw Hajime having a romantic moment with Yue after he killed Cattleya. When they were leaving the labyrinth, Hiyama along with his friends tried to talk to Yue and Shea, but were ignored by them, Hiyama got angered by that and rudely tried to grab Shea's ears, only for him, along with Kondou, Saitou and Nakano to get kicked by the two of them, and shot with rubber bullets by Hajime. When they were at the exit, they met Tio and Myu, Hiyama like the others was surprised to discover that they were Hajime's companions. Hiyama unlike Kouki, who has an attraction to those three, Hiyama is more afraid of Hajime's harem than attracted to them, seeing their combat prowess and cold attitudes. On the other hand, in Hajime's harem point of view; Yue, Shea and Tio hate Daisuke, because upon hearing from Hajime and Kaori that he intimidated Hajime. Their hatred worsened when Hiyama killed Kaori and tried to make her his undead sex slave. They were present when Hajime brutally attacked and killed Hiyama, they unlike his classmates, who were terrified of Hiyama's death, Hajime's harem did not show any outward emotion upon witnessing Daisuke's death. Even though Hiyama is dead, Yue, Shea and Tio as well as his classmates also showed no sympathy for his death and will never forgive him for what he did.

Weapons & Equipment

 * Longsword - His main weapon since being summoned to Tortus. It was broken during his fight with Hajime when the kingdom was invaded by demons.

Physical Abilities

 * Enhanced Physical Abilities - Being one of the summoned heroes, Daisuke was blessed with superhuman physical abilities than an average human in Tortus. However, before his death and after Hajime's mutations, Hiyama was considered to be one of the weakest due to his laziness and tormented people when he's being a coward as he did little to nothing to improve his basic skills and his abilities are far more inferior to Hajime's monstrous and inhuman strength after the latter devoured many powerful monsters when he fight the latter, Hiyama didn't even try to touch or hurt Hajime.
 * Enchanced Stamina - Though Daisuke lack of durability, he has enough endurance to barely speak and glaring at Hajime after coughing out blood when he got brutally injured as when he had almost all of his bones broken and his internal organs taken major damage by Hajime.
 * Expert Swordsman - Daisuke was shown to be skilled and proficient in using sword due to his job as Light Warrior. Combined with his enhanced physical abilities, Hiyama was able to secretly and easily kill all the knights and soldiers of the Heligh Kingdom, including the Vice-Commander Jose Rancaid who is a great master swordsman and the second strongest knight after Meld in order for Eri to reanimate them into their undead puppets. Eri herself once had enough confidence in Hiyama's abilities (before she betrayed him) to subdue a badly injured and weakened Kouki should he ever break free and retaliate during her death trap. However without his sword, he lacks technique and real combat experience as when he fought the monstrous Hajime as he is pathetically weak against Hajime.

Skills

 * Sword Art - A skill that increase efficiency in using a sword.
 * Wind Magic Affinity - It allows the user to use wind magic at a capable rate.
 * Language Comprehension - A base skill granted to all those who got summoned. It gives the user the ability to understand any language and be proficient in it.

Spells/Attacks
Fire Magic
 * Fireball - One of the most basic Fire Spells. However, his fireball is too weak against a very powerful individuals as the fire is not powerful enough to even hurt them such as Hajime who gained power by devouring many powerful monsters.

Quotes

 * (To Hajime Nagumo) "Ish all your fault! If it washn't for you, Kaori would've been mine!"

Trivia

 * Daisuke was the third (formerly fourth) member of his class to be killed, but the only one to be killed by either the demons or their monsters (Hajime knocked him towards a group of approaching monsters).