Tight-Bondage Training Wife: The Birthday When a Chaste Wife Was Reborn as an Obedient Flesh Slave, Offering Herself to Her Perverted Landlord for Abnormal Pleasures Over Her Cold Husband - Reiko Kobayakawa
While her husband is away on a long business trip, Reiko spends her days in loneliness. Her birthday is approaching, and she keeps hoping for her husband's return. However, when the day finally comes, he coldly rejects her, crushing her expectations. A perverted landlord then sets his sights on her. He casually visits her home, claiming he needs to fix the door, and slowly closes in on Reiko. Seizing the moment, he whispers, "You're lonely, aren't you, Mrs.?" and pushes her down. Overwhelmed by loneliness, Reiko gives in to his advances. But that's only the beginning. She is soon drawn into an abnormal existence, gradually losing her sense of self. Unaware of her own transformation, she is pulled deeper into one shocking event after another.