VEC-433 A secret that is only between me and my friend's mother. - I've had sex with an aunt while forcing myself to cum inside her... - Yuki Nanao

"Yuki-san, okay? I'll never tell anyone..." Ishikawa, who had come to visit his classmate Nanao's house, admired Nanao's mother, Yuki. - On this day as well, Ishikawa can't help but worry about Yuki, so he sneaks out of the room to check on Yuki. - And I found out Yuki's secret. - Ishikawa impulsively commits obscene acts...