After losing his father, the son Tsubasa lived with his mother alone and had come to love her as a woman. Although he had secured a job, the son was torn because he didn't want to leave his mother. One day, for a final memory, he took his mother on a hot spring trip. On the journey, the son confessed his feelings. The mother also harbored love beyond that of a parent and child. The parental love gradually turned into forbidden love. The son's penis was sucked, and his genitals were licked, driving them both wild. In their travels, they repeatedly indulged in this taboo love story.
