Kousuke Endou

A member of Nagayama's party. He also has a very weak presence and can't be noticed by labyrinth monsters or automatic doors.

A year after coming back to earth, is revealed that he started dating Rana, of the Haulia Tribe, and is studying medicine for the tribe since they have no one with that talent. He also started calling Hajime Boss and was given the name Kosuke E Abyssgate after being accepted into the tribe.

Personality
Kosuke has a normal personality, although he always complains about his very weak presence that makes it unable for the others to usually notice him. When his skill Abyss Lord is active, his personality becomes that of a chuuni.

Abilities
Kosuke Job as Assassin give him an ability that allow him hide his presence and move quick. Later, after obtaining Age of the God's Magic Gravity and awaken skill Abyss Lord, he become the strongest amongst his peer (excluding Hajime and his harem).

Skill
-Assassination Technique -Presence Manipulation -Shadow Dance -Gravity Magic
 * Dagger Art
 * Concealment
 * Tracking
 * Throwing Art
 * Hidden Weapon Art
 * Transmission Wave
 * Escape Art
 * Abyss Lord
 * Presence Isolation
 * Phantom Step
 * Dream Illusion  III
 * Clarity Phantom
 * Minimum Mind
 * Water Dance
 * Leave Dance

-Language Comprehension

Relationships
Nagumo Hajime: Kousuke have a close relationship with Hajime. Both consider each other as bosom friend. This stem from the fact both of them being treated as a chuuni along with having Hauria member as their girlfriend.

Rana Hauria: Kosuke's girlfriend. He fell in love with her during The Great War. At first, he is rejected successively, after seeing his determination, she present him with a condition that if he can at least put a scratch on Hajime, she will go out with him ,which he eventually succeeds in doing. As Kosuke will eventually become head of Hauria, she wanted him to have a harem like Hajime.

Emily Grant: Fell in love with Kosuke after going through much trouble. Entered Endo's harem by Rana despite the fact he didn't want her to.

Vanessa Paradis: Agent from certain organisation responsible for Emily's safety. Entered Endo's harem by Rana.

Trivia

 * His weak presence is something he has had as far back as a child.