Kouhaku Kuroboshi (黒星 紅白, Kuroboshi Kōhaku; born 1974), also known as Takeshi Iizuka (飯塚 武史, Iizuka Takeshi), is a Japanese illustrator and character designer. He is from the Kanagawa Prefecture and lives in the Fukuoka Prefecture. He is probably best known for his frequent collaborations with writer Keiichi Sigsawa as the illustrator/character designer for the Kino's Journey, Sword Art Online Alternative Gun Gale Online and Tale of a Single Continent series as well as with several other authors and game developers.