Name: Naoya Ueno Gender: Male Personality: A contrarian who loves to tease people the moment they show a sign of discomfort. He lives to do whatever seems fun with all his might. A friendly, outgoing type. Details: A second-year student at Seinan Institute of Technology. President of the Mechanical Control Research Club. His nickname on campus is "Seinan's Unabomber," and he is the university's most notorious dangerous individual. Ever since early elementary school, he admired the explosions of dying kaiju and studied explosions using bottle rockets. In 3rd grade, he fired dozens of bottle rockets at his bedroom ceiling, and by 4th grade, he was making bombs by stuffing gunpowder into Gashapon capsules with fuses. The power was enough to cause a minor earthquake in the neighborhood. He claims to be a "philanthropist." He drives a lime-green off-road vehicle. According to Iketani, he's the type to "tear through forest trails like a maniac." For better or worse, he puts his absolute all into anything he finds enjoyable.

Name: Hiroaki Okami Second-year student at Seinan Institute of Technology. Gender: Male Personality: For better or worse, he is incredibly gutsy and has a powerful, intimidating presence. Surprisingly, he might even join in on the pranks...? Details: Vice President of the Mechanical Control Research Club. His nickname on campus is "The Great Demon God" (a play on his surname), and no one can match him in terms of sheer intensity. He had a girlfriend in high school, but they drifted apart after he entered university. His resistance to women is slightly decreasing, though he's reasonably experienced. He gets flustered like a normal guy. He has a black belt in Judo, though he's retired now. He has four younger siblings in elementary and middle school. According to Ueno, Okami is secretly a pervert (which he denies).

Name: Takahiko Motoyama Gender: Male Personality: The brake and the straight man of the club. He has a sensitive side. Occasionally, he might cut loose too? Details: A first-year student at Seinan Institute of Technology. A member of the Mechanical Control Research Club (commonly known as Kiken). He comes from a family of shopkeepers; his mother runs a cafe. He is somewhat sensitive and not very experienced with women. While he lacks the sheer guts of his classmate Iketani, he is surprisingly resilient. His innate common sense might actually be a weakness in this club...?