BL - Kinky Boots

Ch.5: Kohashi is gay and secretly in love with his friendly kouhai Sasaki, who approaches Kohashi despite his asocial nature and glaring face. After Sasaki invites him to a mixer, Kohashi discovers Sasaki's own secret, when Sasaki kisses him. Sasaki has a glasses fetish and, despite not being gay, can't resist Kohashi in glasses.

Ch.5-6.5: Seiichiro is roommates with Shota, his gay friend since high school. However, Shota is into kinky sex, which Seiichiro either walks in on or is forced to listen to. When he's finally had enough of listening to Shota's sex voice, Seiichiro makes Shota take responsibility for his arousal

Ch.4: At the last stop, the train conductor discovers a drunk college student, who likes his really likes his voice

Kashima is a feared delinquent. Unlike typical delinquents, Kashima's a masochist that gets off on being hit by other guys. Though the rest of the school avoids him, his classmate Ryouji keeps approaching him, confusing and annoying Kashima. After Ryouji interferes in one of Kashima's masochistic escapades, Kashima becomes interested in him, as he starts to realize Ryouji might have a perverted side to him as well.

Ch.1-3,6: Playboy Ryoya is dating his expressionless roommate Io. They originally got together since their bodies are compatible and Io likes Ryoya's scent, but Ryoya fell hard. However, even if Ryoya cheats or comes home late, Io never seems to care. Ryoya becomes concerned he's the only one in love

Gay virgin Shima is interested in trying exhibitionism. After matching with outgoing Takeru on a hook up app, the two go to a love hotel. Takeru opens the curtains to reveal the room is made for exhibitionism, and despite his embarrassment, Shima quickly starts to feel pleasure. Though they were only supposed to meet once, it turns out Takeru, aka Yamato, is a model for the college fashion show Shima is in charge of. If Shima wants Yamato to keep quiet, he'll have to sleep with Yamato again

High schooler Mitamura is a lover of lewd things, so his friend Hayami's seeming lack of pervertedness throws him off. When he realizes Hayami never takes his clothes off in public, Mitamura takes a sexual interest in his friend and what he's hiding underneath, to the point of making erotic photos of him. After finding out, Hayami offers to reveal his secret to Mitamura. Hayami has extremely sensitive nipples, getting turned on by the slightest touch, and he has a crush on Mitamura.