miu, who is retiring soon due to an office romance, participates in a company trip as a farewell party. the inn they are staying at is the same one she secretly stayed at with her boss. at night, alone together, they can't hold back their feelings and have tongue-fucking affair sex. losing control, they meet secretly during the trip and have intense sex multiple times. knowing this might be the last time they see each other, she burns with desire and asks for creampies over and over, forgetting her husband.