Chiyoko is her family's eldest daughter. Whether at home or in the office she always helps out without question - but she tends to prioritize other people's feelings over her own.
As a favor to her family, Chiyoko agrees to a blind date. But on her way there she runs into Ichijo, with whom she has a little spat on the sidewalk. She is shocked to discover that her "blind date" is the man she met on the way there!
She often fights with Ichijou, who is frank and rude. She gets angry and retorts, but she somehow ends up liking him...?
"Also," he says, "I have a strong libido, so I'd like you to take that into consideration when making your decision whether to date me."
"Excuse me?!?!"