On That Day, While I Returned Home To Visit My Parents, My Girlfriend Fucked The Shit Out Of My Best Friend Who Was Staying With Us And Came Over And Over Again Mizuki Aiga

His girlfriend Mizuki, who lives with his best friend, is so cute and enviable... By chance, he peeps on them having sex and learns Mizuki's sensitive weak points—the spots where she moans 'there.' He can't suppress his desire to have that sensitive body for himself, so while his friend is away visiting his parents' home, he decides to make his friend's girlfriend cum! At first, he rapes her forcibly, but as he precisely targets her weak points, she gradually starts to seek him out...