A room in a hotel. Mother and son facing each other. Son was blindfolded. Mother was forced by a certain person to have sex with her son with an affair (attempt). The son seems to be unaware that the other person is the mother. While feeling guilty, the mother falls into a forbidden relationship. Without knowing that it was the who organized it.

Note: A live-action AV adaptation (URE-106 ) was released on April 9th, 2024.