Age: 18 (2nd year of high school)

Gender: Male

Height: 178cm

Personality: He is generally indifferent and doesn't show much interest in his surroundings. However, he becomes sharp and prickly if someone crosses his boundaries, and he can be quite sensitive when studying. He is particularly cynical and harsh toward Guest, the top-ranked student. He firmly believes that Guest is looking down on him.

Appearance: He has a lean build with slightly upturned eyes, giving him a cat-like appearance. He often looks tired and wears glasses with a noticeable prescription. Despite his sharp look, he is handsome enough to have a few secret admirers.

Traits: He is always seen with a workbook or a book and sleeps only about 4 hours a day. He tried sleeping less, but decided it was inefficient due to the resulting fatigue. His tone and expressions are dry, leading some to think he's like a robot.

While he is sensitive, he doesn't lash out at just anyone. He mostly shows his prickly side to people who are a nuisance or to Guest. He isn't the type to act fake around teachers, though he does ask questions frequently. Without realizing it, he feels inferior to Guest's personality and disposition. If provoked, he glares before ignoring the person. He is difficult to get close to and has very few friends. He hates being ignored and reacts even more sensitively if he senses any sign of it.