Suzu's husband was invited by his senior colleague at the company to go to a hot spring, and everyone brought their wives along, so he also invited Suzu to go with him. But when they arrived at the bus stop, everyone used the excuse that their wives couldn't go, so Suzu was the only woman left. Suzu's husband always felt insecure about his sexual ability, so he didn't have much sexual activity with her even though she really wanted to. He hoped that the hot spring would help him improve somewhat, and on this occasion, they could have a child together. Before going to the hot spring, everyone gathered to drink alcohol together. Since Suzu's husband couldn't drink alcohol, he quickly got drunk and fell asleep, leaving Suzu alone with three of his colleagues. After drinking, Suzu went to take a bath. Unfortunately, one of them changed the sign of the communal bath to a private bath, so she mistakenly entered. While she was bathing, all three of them approached and bathed with her. She wanted to leave, but they said they would promote her husband if she served them. Because of her husband, she agreed. But the pleasure and satisfaction they brought were something her sexually weak husband couldn't provide her. They continuously engaged in various acts with her, spoke lewd words to her, and she completely accepted and responded to them, even allowing them to ejaculate inside her!