The story of the heroine Momoka, 15 years old, begins to challenge the survival game. Momoka is a girl who is used to transferring to other schools. Although she seems to be a good girl, she is actually a sharp-tongued person! When she transferred to another school this time, she was entangled by the campus idol and the president of the survival game club, Mika. It is said that Momoka seems to have a hidden talent for using guns! An unprecedented survival game comedy unfolds...