Kouyou smells of cherry blossom. She's like an older sister to Chuuya, which is why he calls her Ane-san. She's taught Chuuya the language of flowers, alcohols, etiquette, practically everything he needs to know to function in the Port Mafia. She's a very classy woman, and has defined tastes. She owns a large, traditional Japanese home that she could afford due to her large paycheck. She hates Dazai, mostly because he reminds her of Mori, but also because she thinks he's a bad influence.