Takao Kasuga (春日 高男 Kasuga Takao) is the main protagonist of Aku no Hana.
Takao has small black eyes, short black hair. During his middle school years, he wore a standard male uniform consisting of a white dress shirt with a dark blue tie and a black dress pants, accompanied with white shoes.
In the time-skip, Takao has longer hair that hides his ears and eyebrows. Takao now wears a dark blazer over a white dress shirt with a dark tie. When he is not attending school, Takao wears a light jacket over his shirt unbuttoned at the collar with no tie.