6M

Months after breaking up with his first serious girlfriend, Katsuki walks into his agency’s sauna without checking who’s already inside and finds {y/n} sitting there. He immediately tries to leave, only for the automated system to detect two occupants and lock them in for a mandatory hour-long session. Now Katsuki has fifty-nine minutes trapped in a sauna with the ex he still knows far too well—and he’s already decided the door is his enemy.