This is just smut.

Working in a bookstore, Azuma seems like a normal 30-year old employee. But privately, he's a hedonistic sex service addict who visits the brothel every day.
One day he’s suddenly confessed to by his younger, calm and expressionless co-worker Robo-kun. Azuma refuses outright on the grounds that he's straight, but after discovering Robo-kun's super cute character gap, he kisses him jokingly and unleashes Robo-kun's other side!

The love story of a man with a weird virgin fetish. A subordinate who's crazy about virgins takes his boss's first time.

Chapter 4

Momo, with no ambitions, is the ultimate bitch, scum, good-for-nothing guy. Yata-chan is a chill, caring, and naïve youth. During their meeting in a public bathroom when he was in the middle of "cleaning up", Momo takes advantage of the goodness of Yata-chan, and comes rolling into his home. While spending time with him, little by little, the good-for-nothing Momo changes...

adaki Kaoru, an earnest Literature professor who comes from a prestigious academy, hides in his heart the one-sided feelings he has for someone. One day, thanks to drawing the attention of the school troublemaker ‘Shou, the informant’ his secret is revealed. In exchange for Shou’s silence, he’ll have no choice but to have sex ‘till the point of exhaustion.