Asuka is the stepdaughter of his deceased wife, Keiichi the adoptive father who has trouble dealing with it. Seeing his daughter standing in the kitchen, Keiichi is unable to control his impulses and crosses the line. Keiichi was worried about how to treat her the next day, but Asuka talked to him as if nothing had happened. One day he brought a phone that his late wife had used that could not be unlocked. He was able to unlock it and look through the phone to see the memories, An AI character appears that seems to project the image, memory, and personality of his late wife. The AI regrets that the protagonist didn't have much sex with his wife while she was alive, She whispers to her daughter to do what she wanted to do, to her daughter...