Takeda, an office worker obsessed with asses, is assigned to train a new employee and reluctantly goes into an otherwise empty office during remote work. The trainee, Ms. Asakura, has an unbelievably perfect ass. The sight instantly triggers Takeda’s obsession, and he cannot stop staring at her ass throughout the training. He eventually masturbates while watching it, then loses control and forces himself on her in the deserted office.