Returnees

Returnees colloquially refers to the class that disappeared then returned after being summoned to another world.

History
Initially, it was the class from Japan that was summoned to another world by its god to be the "heroes" that was meant to save humanity from Demons. When they finally returned to Earth, they were constantly faced with questions from the media of where they disappeared too, to which they simply stated that they were summoned to another world and fought its evil god. This, however, did not detour the news from seeking more information from them; this didn't help much, due to all the trauma caused by the event. Eventually all of the hysteria died down down when Hajime Nagumo used an Artifact that subliminally ordered the rest of the world to instead carry on with their daily business and no longer to focus on them anymore. Even so, after the world no longer paid any interest in them, there were sill various domestic and foreign organizations that targeted them and sought to harness their power, but were defeated every time. To help prevent any future incidents, the Japanese government formed a special division that focused on intercepting any agents or groups from approaching them without approval, as well as for them to act as a liaison between the Returnees and the government.

Earth

 * Hajime Nagumo (Leader)
 * Kaori Shirasaki
 * Shizuku Yaegashi
 * Aiko Hatayama (Teacher)
 * Kouki Amanogawa
 * Ryutarou Sakagami
 * Suzu Taniguchi
 * Kousuke Endou
 * Kentarou Nomura
 * Jugo Nagayama
 * Mao Yoshino
 * Ayako Tsuji
 * Shinji Nakano
 * Yoshiki Saitou
 * Yuka Sonobe
 * Taeko Sugawara
 * Nana Miyazaki
 * Atsushi Tamai
 * Noboru Aikawa
 * Akito Nimura
 * Nine unnamed students

Tortus

 * Yue
 * Shea Haulia
 * Tio Klarus
 * Remia
 * Myu
 * Liliana S. B. Heiligh

Trivia

 * The summoned retained all their newfound abilities and able to put them to use back on Earth, same can be said for those who came from Tortus. Saving for passive abilities, the Returnees would most proactively refrain from using their abilities / magic while on Earth, unless in private or amongst family/fellow Returnees, or when troubles comes knocking.
 * Due to having been conditioned and traumatized by the other world, he Returnees are having to readjust to their home world largely peaceful world (since Tortus was hugely violent due to Ehit making everyone war nonstop).
 * The deaths and therfore lack of Eri, Daisuke and Yukitoshi returning is a subject that didn't get much clarity; Eri's mother notably wouldn't have cared, having abused and psychologically damaged her.