Yui, who lost her husband, lives with her son. Her son has withdrawn, and Yui takes care of her. However, it was a public appearance, and the two of them were conscious of each other as the opposite sex from the time her husband was alive. The second wife's mother and the ex-wife's son... The feelings of the two swelled every day and had already reached their limit. Yui invited her son to a hot spring trip to settle this situation. Parent and child, but originally strangers... I want to be connected... both my mind and body... A storm of forbidden pleasure attacks them.
