VEC-243 - My friend's wife's package arrived at my house? The temptation I couldn't resist...

One day, a mysterious package arrives at Kobayashi's house. Inside is a sex toy he never ordered. The recipient? Rina, his friend's wife who lives next door. Kobayashi never saw her in a sexual way before, but now his mind is racing with wild fantasies. He visits Rina's house, and she, oblivious to what's about to happen, welcomes him with her usual smile, unaware that she's letting a hungry beast inside.