Since childhood, Kaho and Hiroshi have been close mother-and-son. Every year, they go on a hot spring trip as a family. This year, because the father is busy, they decided to go on a hot spring trip just the two of them. In the absence of the father, the subtle relationship between the mother and son becomes apparent. Kaho, who has an unhappy marriage. And it turns out that Kaho and Hiroshi were aware of each other as if they were the opposite sex. At first, Kaho refuses the relationship because she is worried about what others think, but eventually she accepts it and they both want each other greedily...
Takara Eizou
