Voiced by: Matsuoka Yoshitsugu (Anime) & Fukuyama Jun (Drama CD)
Yūki is the manga artist of the currently serialized "Hajiratte Cafe Latte" (HajiCafe). He is mostly viewed as perverted by many and does not hesitate to tell his interest or asking his assistants to be his model for reference. Yūki has an uncontrollable fetish for woman undergarments, specifically panties. Even so that his main philosophy and theme of his manga revolves around panties, much to the chagrin of others. He has the habit doing his manga work by the last minute before fixed deadlines due to engaging on his interests, much to his editor's distress. Hiss goal in life is to be confessed by a girl before he dies. Yūki is said to be a very skilled manga artist, who could rank much better if he truly wanted, but his interest on drawing panties as his priority gives him only a decent ranking at best. He's 22 years old and happens to be a major masochist.