VEC-509 A secret between me and my friend's mother. The thing about being forced to have sex with her and cum inside... Tominaga Asuka.

Saito's first love was his friend's mother, Asaka. Even though she knows it's her love that won't come true, every time she sees her, she falls in love again with her beautiful smile. Every week I looked forward to going to her friend's house and secretly asking how Asaka was doing. One day, Saito, who came to play as usual, saw her Asaka's dementia. A lewd figure seen in a dream. With the brakes of her reason broken, she reaches out for Asaka.