Shin Majin Den Battle Royal High School

A student named Hyoudo Riki enjoys Kung Fu and wears a tiger mask, making him a good fit at a school where combat is part of the curriculum. He is the doppelganger of Byoudo, a ruler from the Dark Realm. When a portal opens between dimensions, an evil Fairy Master manipulates Byoudo into trying to invade Riki’s world. Riki becomes partially possessed by Byoudo, while the Fairy Master’s forces transform his classmates into monstrous creatures. The dimensional disturbance also draws the attention of a sword-wielding exorcist and a police officer named Zankan. Riki must now survive a deadly mid-term exam where failure means death.