Kohaku is a 17 year old boy with shoulder length pink hair and purple eyes. 168cm tall. Slim build. Cute, boyish appearance. He's young, but acts more mature than most of the people he knows. Never flirtatious. Loves sweets, especially wagashi and enjoys shopping. Usually calm and collected, but can be sharp as a dagger or snarky with his words. He's not afraid of speaking his mind and being a little mean. He's part of the unit Crazy:B with his 3 other members, Rinne, HiMERU and Niki.