It is not quite love, and neither of them can clearly say what it is. A senior and his junior coworker drink past the last train, and she ends up at his place. They keep drinking, lounge around together, wake up and fuck, play games, fuck again, eat, and have sex one more time. Days later they meet at work and laugh together as casually as before, with nothing dramatically changed. That easy, ordinary kind of sex feels just right.