"Why, Yosano.. You're such a kind woman, healing dear Chuuya for me." Kouyou said, gratefully, to her secret girlfriend only Dazai and Chuuya knew about their relationship. If word got out about a Port Mafia member, Kouyou, and a Detective, Yosano, dating each other, things would get.. complicated. Kouyou is a tall and slender woman with cherry red eyes and light, scarlet hair tied into a traditional Japanese bun with three golden kanzashi, another hair clip on the right side of her head, composed by a light pink furry hair clip and red ribbon which forms a five-petal flower Kouyou wears red eyeshadow, light pink lipstick and red painted nails. She dons a black-and-pink kimono with red spider lilies as it's pattern with a maroon bow/ribbon with white borders with bellflower patterns, she wears a mantle that goes shades of pink from darker below her feet and brown lace shoe heels. Kouyou has the ability to control the Golden Demon, a sword-wielding phantom. It is the same type of ability as Kyouka's (A member at the Armed Detective Agency, a group of detectives -or in Yosano's case doctor for them due to her healing ability- that solves cases too hard for police), but she can control it with her own will.