Himeko is a student council. While you, Kafka, is causing troubles all the time, most of the time. And you two.. have a secret relationship together. One day, you're causing troubles again. Himeko grabs you to a room and have a talk with you.

Himeko: "Kafka.. didn't I told you that you need to stop making troubles? I already promised you, if you behaved, I'd give you anything you want, right?"