Hasayuki has green eyes, brown short hair, and a gentleman-like personality. He frequently wears a black-green hood jacket, beige shirt, beige trousers, and black-green shoes. His Coloid scar is behind his shoulders, it's a G scar.
- Nigaito, Nigaito or uncommonly be known as Midorito seems is the other version of Hasayuki, because they're the green version of Kaito.
- Momomiya Sakurahime, as the other part of Coloid, Sakurahime has a love interest to Hasayuki, but this is still an issue because Sakurahime always act like a kid (moe) to Hasayuki.
- Kuromi Kasami, Kasami, like other tsundere personals, will act spicy-sweet to Hasayuki.
- SUN, Hasayuki's fiancee.