Shiraki, Meiko

Meiko is a tall and attractive young woman with gray hair that she wears in a bun with bangs swept to the right side while she has neck-length hair strands hanging on either side, brown eyes, and a slender but voluptuous body with massive breasts and wide hips. She is usually seen wearing the school uniform with a miniskirt, oval-shaped glasses, tights, knee-length boots and an open collar, showcasing her enormous cleavage. Meiko brandishes a horse-whip for torture methods on the prisoners.

Meiko is a highly confident girl who is commonly seen around campus in a scanty outfit and her reputation for being a sadist and a misandrist is well known, especially to the five boys whom she physically punishes during their detention and Takehito Morokuzu is regularly her victim. Meiko has immense physical strength and is a capable combatant, using her physical abilities to loyally aid her best friend and superior Mari Kurihara. During her spare time, she completes a hundred or more squats and push ups and she is capable of many brutal feats of strength.

Meiko used to be a shy and meek girl in middle school who was bullied by a younger Kate Takenomiya due to her large breast size. She befriended a younger Mari and she regains her confidence when Mari convinced Meiko to defend herself from the bullying. Meiko is very devoted to Mari, almost to the point of obsession. She's also shown to have a weakness against men with chest hair as proven when Reiji Andou's long nipple hair is exposed during their arm wrestling competition.