My Girlfriend is Shobitch OVA

This OVA was bundled with the limited edition of the sixth volume of the manga My Girlfriend is Shobitch.

High school student Haruka Shinozaki finally works up the resolve to confess his feelings to Akiho Kosaka, the ideal student: a top scorer with flawless looks and impeccable behavior. To his surprise, she says yes. The two begin dating, but before long some unexpected aspects of the girl's character come to light. Behind her reserved exterior is someone capable of startlingly blunt remarks, especially when it comes to physical intimacy, boundaries and topics her boyfriend is not used to discussing.

Akiho calmly brings up delicate subjects without the slightest embarrassment over the details, while Haruka constantly finds himself in an awkward position, not knowing how to react. It is hard for him to tell where sincere curiosity ends and provocation begins. She has no qualms about calling things by their names, regularly leaving her boyfriend flustered. Every comment of hers is a test, and every conversation is an exercise in self-control, in a relationship where the usual rules simply do not apply.