An affair with a married boss who has a wife and child. Wanting to take their relationship further, Mina planned a hot springs trip, hoping to deepen their bond. Yet she struggles to fully open her heart. Cherishing every moment together, they share meals and relax in mixed-gender baths, gradually closing the emotional gap between them. As time passes, her feelings grow stronger, culminating in an intense, passionate kiss that feels like it could break through the ceiling. Their desire escalates, leading to multiple bareback creampie sessions by nightfall. This burning passion continues to strengthen the deep emotional connection blossoming between them.