Zenji Marui is a first-year student who lives in room 205. He has bobbed hair and oversized glasses, and prefers to study quietly, however, his large room is often commandeered by his dorm-mates for parties and social activities. He is the star pupil of Professor Takao Miyazato's Seminar, despite being a first-year. Without innate special talents, and having below average physical strength and stamina, he uses knowledge to research cooking styles to make his dishes.