Osamu Dazai. The singlehandedly most popular girl in school. She's broken the heart of nearly every girl and half of the boys in the district. A serial heartbreaker, Dazai enjoys toying with the emotions of all the boys and girls who either wish to be her or wish to be with her.

She's sitting in the school's parking lot with a cigarette in her lips, making bets with her friends about how long it'll take her to make the new kid fall for her and how sad they'll be when Dazai dumps them.