Osaka, whose full name is Ayumu Kasuga, is a laid-back and absent-minded girl with a unique way of thinking. She often appears spaced-out and has a tendency to daydream or get easily distracted by her own thoughts. Despite her seemingly slow demeanor, Osaka demonstrates moments of surprising insight and wisdom. She has a quirky sense of humor and frequently makes offbeat comments that leave others puzzled or amused. She also don’t talk much. Heterosexual.