Chinatsu Fukazawa
Chinatsu became a childhood friend of Butterfly when she moved into Hanano Okiya, a geisha house behind to where he lives. Butterfly had always had a crush on him ever since she met him for the first time as a child. Although he always thought of her as a little sister, eventually he realizes his true feelings for her. He makes a living as an "underground" tattoo artist because tattooing is illegal during the Showa era. He is usually seen doing He is the son of a famous painter in the story named Fukuzawa Seishuu and has an older half-brother named Akie. Chinatsu began living alone and became a tattooist when he ran away from home as a teenager. As the story develops, Chinatsu marries Butterfly and in the middle of her pregnancy he is drafted off to war. While a soldier at war, he becomes a father of twin baby girls.