YSN-115 playro playro's fantasy game

Synopsis

It seems that I became a little H when I was entrusted to my relative's older sister San. Try to play a prank on your older sister who fell asleep with an electric massage machine. Then, I was surprised to see that onee-san leaked it because it seemed like I had hit a bad spot! Furthermore, if you wash yourself in the bath and experience a strange feeling, or get naked in a free research experiment and get slimy with two people, Ji-ko and Ma-ko will dock! …Is this your first SEX?