Kuro- (=meaning “black” in Japanese) chan is one of Tora-chan’s boyfriends – maybe. He puts on a black jacket on a white shirt, which reminds us of “Piano”. This spring with many cold days, including a snow in April, had Kuro-chan to share the warm bed and meal with Tora-chan almost every night. Boy, where’s your family? If you’d like to stay here, you must let us bring you to see Dr. O.