High School Kampfgruppe! ~The Cheerful High School Student Mercenary Squad Led by the Strongest Trap Character Was Transported to Another World with Cheat Abilities~

A battle-hardened high school student is transported to another world!? What misfortunes befall 12 high school mercenaries, 30 ordinary high school students, and a homeroom teacher with a troubled past! Note: Although it says "high school," quite a few non-high school students join relatively early in the story.