Nora Handa is a boy who lives with Shachi Yuuri, his mother's adoptive son. Even after their parents died, the two of them grew up healthy thanks to everyone's assistance. Shachi, who adores Nora, wakes him up every morning. Nora lives his joyful student life with Michi Kuroki, a disciplinary committee member, honor student at school, and childhood friend of the main character, Yuuki Asuhara, a gal but extremely brilliant with whom he can discuss his troubles, and other school pals. Nora encounters a girl named Patricia at the park on her way to school one day. Patricia is a queen of hell who claims to have come here to kill life on Earth.