Kanpeki Ojousama no Watakushi ga Dogeza de Mazo Ochisuru Choroin na Wakenai desu wa! - Episode 1

Student council presidents are often respected or even feared by the students at their school. Combine these traits with an astonishingly beautiful appearance and you get Irina Shirogane-a seemingly perfect student who everyone looks up to. However, looks can be deceiving, as president Shirogane bears a carnal secret: she is an extreme masochist with an insatiable lust.One day, Sado Yuuji walks in on Shirogane as she pleasures herself in a classroom. As a result, each time Sado crosses her at school, he sports her a look of disapproval. Turned on by the prospect of being looked down upon, Shirogane decides to confront him, only for her masochist impulses to lead the two into a sexual encounter. Thereafter, she decides to make Sado her master-and thus begins a rather unconventional relationship.