A doujin audio work where the senior girl you have a crush on is cucked by a middle-aged janitor and she shows off her sex to you and gives you masochistic sexual training.
Enjoy(?) as the girl you have a crush on has sex with her socially capable boyfriend right in front of you... using you as bait for their passionate fire. (CV: Miyako Hagiwara)
"Wha...!? Y, you, what is it...! A video of me having sex with my BG...!? When did you!?" Her perverted fat-ass teacher blackmails her into a sexual relationship and... (CV: Phan Masaki)
You, a cherry boy masochist, watch the girl that you just barely mustered up enough courage to confess your love to... have sex with her playboy boyfriend. (CV: Saki)