After ten years, cousins Ken and Tomo—now with a matured body—reunite during the holidays. They hit it off and commit the forbidden act, but little do they realize that it was observed by Ken's devilish little sister, and the lengths that she'll go to to prevent their love from blooming further...
The cheating continues as Kokoro goes behind Kouta's back with his best friend. He continues to abuse her, using Kouta's good conscience as her vice. Only this time, she wants to show Kouta to catch her in the act.
Kokoro is an innocent girl who wants nothing more than to be with her boyfriend, Kouta. Kouta texts her to come to the beach with her swimsuit! And she willingly accepted! Except... It wasn't Kouta that requested to see her.
Kirishima, the princess of nerds! Queen of Cultural Research who loves her followers! ... Or so they think until they catch Kirishima having sex with another student, one she deems attractive. Only she was being deceived the whole time! How will the nerds react to this?
All Yukino wanted was to reinvent herself come high school after being branded the “weird kid” in elementary. Indeed, with her looks and charms, her new friends in high school saw her as an outgoing girl — the type who could easily land an older boyfriend or have a one night stand or two. However, after being confronted by a predating classmate who threatened to expose her less-than graceful past, she reveals that she is actually a virgin only pretending to be loose if only to be popular. And thus begins a string of exploitation, exhibitionism, and unwitting sex that ultimately turns Yukino into the very thing she originally made herself appear to be: a whore.