A man named Saiki discovers that his intimidating and perfect boss, Reina Misaki, secretly runs a lewd social media account. After drunkenly confronting her about it, they begin an intense sexual affair during a business trip. Despite developing feelings for Misaki, she reveals she was only using him for physical pleasure and has no romantic interest, later deleting her account and transferring overseas. Saiki returns to his devoted girlfriend Tomomi, who remains unaware of his infidelity and continues to hope for marriage, while Saiki contemplates his inadequacy.