VEC-520 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... - Natsuki Takeuchi

I never thought I would fall in love with my friend's mother, Natsuki. - I can't stop my heart pounding as Natsuki flaunts her sex appeal. - However, the other person is my friend's mother and is married. - If it's a love that won't come true anyway, I want to at least leave behind some beautiful memories. - Kawagoe sneaks in to see how Natsuki is doing so that he can fully appreciate her beauty. - However, there he comes into contact with Natsuki's unexpected secret.