Kouhaku Kuroboshi (born 1974), also known as Takeshi Iizuka, is a Japanese illustrator and character designer. He is from Kanagawa Prefecture and lives in 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 and Allison series, as well as for several other authors and game developers.