Kiriko is pretty girl, working at an office. She also binge eats and then makes herself vomit. The male workers like her, but female workers hate her. Kiriko believes that the only that matters for a woman is being cute. Kiriko has Yuto, who works at a bar. The relationship between Kiriko and Yuto is more than friends, but less than a romantic relationship.
Maki, 29 years old, cannot forget about her ex-boyfriend. One day, she met some strange guy called Hayashi.
Nanoca Flanka is a genius inventor girl working hard in her atelier in order to revitalize the town of Tristia. One day her archrival, Panavia Tornado, suddenly arrives the town and challenges Nanoka to compete against her in the upcoming mechanical golem tournament.
