Newly hired employee Ena Satsuki suddenly finds herself on a business trip with her department chief, Takeuchi. After drinking too much alcohol at a work event, Takeuchi passes out in his hotel room and accidentally cancels his own reservation. Panicking, Ena forcibly arranges for them to share a room. That night, Ena teasingly nibbles and plays with Takeuchi's nipples, surprising him—but also turning him on. When Takeuchi wakes up, he's brought to climax by nipple sucking and a handjob, ejaculating again. Yet, seeing he's still not fully satisfied, Ena continues to push his arousal even further...