BL - Blackmail

For a punishment game, Nagami punishment was to kiss the next person who walks by, but the stranger he kiss turns out to be Miyata, a third year senpai. When Nagami goes to the nurses office, Miyata reveals he was one Nagami had kissed. But instead of forgetting about the kiss like Nagami asks, Miyata assaults him, getting a picture of Nagami's o-face for blackmail. Now, Nagami is doing whatever he can to delete that picture.

Maki is popular and good-looking, but despite what everyone think, he's still a virgin. While lamenting in the gym storage, his classmate Miyashita finds out he's a virgin. Miyashita uses Maki's secret to blackmail him into going out with him.

After going to school commando, Ryo is caught in the bathroom by Nojima, a kouhai. Nojima takes a photo and the underwear Ryo had bought to change into and blackmails Ryo. Until Nojima is satisfied Ryo must do anything he asks, be it wearing a bra during class or masturbating in front of him.

Mikado hates his obnoxious superior Anezaki, who pushes his work on to Mikado. After getting drunk at an office party, Mikado is forced to take Anezaki home, but, not knowing his address, takes him to a love hotel. While at the hotel, a wasted Anezaki climbs on top of Mikado and asks him to film, so when a sober Anezaki asks Mikado not to tell anyone what happened, Mikado has the perfect blackmail. Though, it becomes useless when Anezaki discovers Mikado is a secret idol otaku.

Delinquent Kawachi has been stalking his kind and refreshing senpai Shinozaki since Kawachi's nerdy elementary school days. After Kawachi follows Shinozaki to the gym storage shed, he finds out Shinozaki's pleasant disposition is an act and he's actually foul-mouthed and irritable. But, when Shinozaki discovers Kawachi, he tells Kawachi not to tell anyone his secret, he'll do anything. Flustered, all Kawachi can say is, "blow me." Afterward, Kawachi blackmails Shinozaki to continue seeing him.

Psychology student Ichijou easily notices the feelings assistant law professor Yukinari suppresses for his younger brother Yukitaka. After catching Yukinari watching Yukitaka's judo match while hard, Ichijou, uses Yukinari's lust for Yukitaka to blackmail him into becoming his sex friend.

Noboru admires his former actor brother, and, while helping as an extra, Noboru became a die hard fan of idol actor Kuriwaki. After forgetting something in his classroom, Noboru returns to find his female classmate Tange changing. While trying to leave, he is attacked by Tange, who turns out to be Kuriwaki cross-dressing. To make Noboru keep his secret, Kuriwaki takes a picture after giving Noboru a blowjob as blackmail and, in order to monitor him, Kuriwaki makes Noboru his servant.

After Kamizaka realizes that Hoshino from the class nextdoor is popular stage actor Sora, Hoshino suddenly kisses him and takes his picture, using it to prevent Kamizaka from spreading his secret and blackmail him into following his order. However, Kamizaka's innocent and honest nature begins to change Hoshino.

Studious Makoto is abused by his father, but still longs for his love. While skipping swim class to hide the bruises, his secret is discovered by rich delinquent Fudou, the person Makoto didn't want to find out the most. In exchange for keeping the abuse a secret, Fudou forces Makoto to have sex with him.

Ch. 1-3: Popular Sueoka hides in the bathroom, preferring to be alone. While there, he witnesses loner Oohashi and his sex friend fighting then having sex. Later, Oohashi blackmails Sueoka into being his new sex friend for masturbating while watching them