Aki lived under the control of an abusive partner called his "master." This master confined Aki, keeping him bound and naked in a closet as part of a scenario for sexual exploitation. The master lured outsiders into non-consensual encounters with Aki, treating him as a possession within a degrading pet-play dynamic where he was labeled a rabbit named "Aki-chan." Aki understood compliance with his master's demands was necessary to avoid triggering further violence, indicating a history of psychological and physical manipulation.

His encounter with Ueno, a college student working as a pet sitter, became pivotal. Expecting to care for a rabbit, Ueno discovered Aki in captivity. Aki explained the master's expectations and potential retaliation if Ueno resisted participation. Fearing repercussions for both, Aki persuaded Ueno to engage sexually while being monitored via hidden camera. During this encounter, Ueno's unexpected reciprocity and affection—a departure from Aki's typical experiences—prompted an emotional shift. Aki then urged Ueno to leave before the master returned.

Following this event, Aki confronted his master and defiantly rejected further participation in the exploitative arrangement. This resulted in severe physical assault and expulsion from their shared residence. Despite the brutality, this marked Aki's decisive break from the abusive relationship.

Later, Aki reconnected with Ueno at the latter's educational institution. Having enrolled as a student himself, Aki revealed the beating and expulsion as a result of his rebellion, indicating his new path toward independence. The interaction concluded with implications of a potential ongoing relationship between them.