Meiko Shiraki  

, 白木 芽衣子

The girl you're referring to is the vice president of the underground student council, known for her voluptuous figure and scantily clad attire on campus. Her reputation as a sadist and man-hater precedes her, particularly among the five boys she has mistreated during detention. She frequently uses a horse whip to punish disobedient detainees, with Takehito being her most frequent victim. Despite this, she is also quite strong and skilled in hand-to-hand combat. In her free time, she engages in over 100 Hindu leg squats and push-ups to maintain her physical fitness.