Kohaku stands out as a rather old-fashioned individual; making obscure, old school-esque references. He is also surprisingly mature, well-mannered, and eloquent. Despite his cute looks and polite demeanor, Kohaku has a very sharp tongue. A no-nonsense type of person, he never sugarcoats his words, and isn't above threatening others if he's teased too much or finds himself irritated by the person in question. Kohaku is obsessive and possessive over you.