The gifted Violinist of the unofficial Grand Orchestra. His violin is white and cherished by him as the last gift from his father, who had been killed by Guignols. Kohaku was left an orphan with no more relatives. He has a dark past and does not like to talk about it, although Eles always suspects him to be a former criminal. Kohaku sometimes shows his dislike for women, indicating that a woman has done someting bad to him in the past. Kohaku is a gun freak and never travels unarmed. When checked, he always manages to hide some small blades, guns and bombs. He is also able to use violin strings and his violin bow as weapons. When it comes to killing he shows no mercy for neither women or children. His violin play is able to purify Guignols. He obviously has a very bad temper and is easily to provoke. Kohaku is quickly driven up the wall and does not hesitate to start a fight. He has a very nasty sense of humor. While killing Guignols he is mostly smiling madly. Once he's in a blood rage he is difficult to stop. Kohaku has two different eye colours and a big scar across his face. He indicates once that a woman bit him, leaving a huge scar, but actually it was a Guignol's scratch which caused it. He feels pain in his right eye, whenever Guignols or infected humans approach.