I just wanted to stay for my wife's sister who missed the last train... The stress that accumulated without sex exploded, and I played myself to commit until the morning. Kudo Yura - Yura Kudo

The protagonist's sister-in-law, Yura Kudo, misses the last train and stays over at his home, leading to a series of events driven by his pent-up stress and lack of sex. They fuck in various positions, culminating in him cumming inside her.

1. [18:23]They start developing an intimate connection, with observations of genitalia and suggestions of sexual interest. · kissing
2. [36:40]Their desire for each other grows, with expressions of intent to have sex. · fingering, kissing
3. [1:14:01]They fuck, discussing comfort and climax, and the male asks to cum inside her. · cowgirl, missionary
4. [1:52:07]The encounter continues, with descriptions of pleasure and comfort, and they achieve orgasms. · doggystyle
5. The protagonist invites his sister-in-law to stay over after she misses her train, setting the stage for their encounter.
6. The protagonist and his sister-in-law finish fucking, having satisfied their desires. · kissing
7. Final moments of intimacy and closeness before parting ways.