Tsuchiya, Kouta

土屋康太

A second-year high school student at Fumizuki Gakuen, placed in Class F. He has been friends with Akihisa since the first grade.
Due to his quiet and calm demeanor, he rarely draws attention; however, his lecherous nature and constant attempts to conceal it earned him the nickname "Muttsurini" (a play on Mussolini, also interpreted as an abbreviation of "Muttsuri Sukebe," meaning "Reticent Pervert").
Most of his academic scores are nearly as low as Akihisa's, yet his extensive knowledge of sex results in unusually high marks in Health and Physical Education. Nevertheless, he tends to suffer nosebleeds whenever he imagines or encounters suggestive content. In certain instances, the bleeding is so severe that he requires multiple blood transfusions to sustain his vitality.
In English translations, he is also referred to as "Voyeur" and "Pervert Ninja."