Kenji Ohtsuki(大槻 ケンヂ（大槻 賢二）Ōtsuki Kenji) (born February 6, 1966) is a Japanese rock musician and Seiun Award winning writer from Tokyo. His musical career began in the late 1970s to early 1980s. He is the vocalist of Kinniku Shōjo Tai, Tokusatsu, Underground Searchlie and Karate Bakabon. He is a popular figure in the Otaku subculture, in part because of songs used in anime, such as Welcome to the N.H.K., Hellsing, and Sayonara Zetsubō Sensei.