En Jupe d'Uniforme : Venger Ma Sœur

A top-tier assassin's twin sister jumps from a building due to bullying, left clinging to life. Seeing the bullies' shameless messages, he suppresses his anger, wears a wig and school uniform, and returns to campus as the "lamb." Facing the bullying again, his eyes show only the thrill of the hunt. The violent game of retribution begins—can he make every demon pay in blood without exposing himself?