Part 2
The second part begins with Ueno, a student in college, who works part-time as a pet sitter, receiving an assignment to take care of a rabbit.
Upon arriving at the specified address, looking for a rabbit named Aki-chan, he finds that there is no rabbit. Instead he discovers a young man bound, naked, in a closet, apparently a sex slave to the man who hired Ueno. Aki-chan is chagrined to realize that his lover/master has created a twist on a sexual thrill situation for himself - he has sent strangers to Aki-chan for sex before, but tricking someone into the apartment is a new twist. Aki-chan knows his master wants to watch from a distance while Aki-chan has sex with the duped Ueno. Explaining that his master will get mad if things don't go his way, and may even hurt Ueno, Aki-chan persuades him to have sex to keep his master happy. In a car outside the building, the master, smirking, watches the two via a hidden camera. Initially just expecting Ueno to lay back and allow him to do all the work (something Aki-chan seems accustomed to), he is surprised when Ueno reciprocates and takes the active role. After making passionate love and sharing a kiss, Aki-chan then encourages Ueno to leave before his "master", returns. After Ueno reluctantly leaves and his master shows up, Aki-chan angrily announces that he thought himself open-minded, but has had enough of the manipulative head games.
At some unspecified but close later date, Ueno encounters Aki-chan at his school. Aki-chan defied his master, was severely beaten, thrown out and has since enrolled himself at Ueno's school. The scene ends with hints that the two may continue their relationship.