My girlfriend Airi heads back to her rural hometown for a week. When I call the next day, something about her seems off—and I discover that she ran into her ex and had sex with him. Overcome by the pleasure, Airi asks a friend to arrange another drinking party with him, then spends every remaining day shut inside with her ex, having creampie sex. Imagining the shameless face she never shows me as she cums over and over for him leaves me depressed and painfully aroused.