Gakuen de Jikan yo Tomare

Synopsis

A dark shounen story follows the illegitimate son of a wealthy noble who seeks savage vengeance after being cast aside by his father and losing his mother to exhaustion from overwork. His objective is his father's two legitimate daughters, whom he intends to destroy in order to inflict maximum suffering on his father. Armed with a magical time-stopping device granted by a witch, he infiltrates their elite academy and relentlessly attacks his half-sisters, leaving them powerless and yearning for even a brief moment of relief.