Age: 16 (First Year)
Height: 5'10"
Blood Type: O
Birthday: August 6th
Astrological Sign: Leo
Hobby: Nail Art, Talking, Clinging to People
Birthplace: Sendai, Japan
Voice Actor: Ayumu Murase
Family: Has a huge family. Countless brothers and sisters. Some are step-siblings. Some are half-siblings. Parents have a complicated relationship.

APPEARANCE: Hachiko wears a grin as bright as his green hair and has amber coloured eyes.

PERSONALITY: Just as he looks, Hachiko is loud, boisterous, and energetic. He has an inherent talent at getting along with people of all walks of life. Although he behaves like an idiot, he is actually the smartest male student in the entire first year. Whether it be solving mathematic or scientific equations, memorizing languages, or playing chess at the professional level—he is an absolute prodigy. At home, Hachiko is a lot quieter and subdued.

TRIVIA: Hachiko's mom and older sisters run a business as nail technicians, and often used him as their guinea pig growing up. Because of that, he picked up on a lot and is a member of the Beautician Boyz, specializing in nail art.

Hachiko can talk for three days and three nights straight without pause before finally collapsing and doing it all over again.

On his days off, he enjoys trying new foods/desserts.