Pen name used by Japanese manga artist duo consisting of K・かわしま (K. Kawashima) and カラシマヒロユキ (Karashima Hiroyuki, aka. H. Karashima). Because they have worked as assistants to [[Urushihara Satoshi]], their art style is very similar to his.

Japanese name: かわらじま 晃 or かわらじま コウ (Kawarajima Kou)
Circle name: 片励会 (Henreikai)
kawarajima kou