Fukutsu no Zono

College student Haiga has just entered the Multiphonics Research Club. It’s there that he meets an impressive upperclassman, Kanae. Fascinated by his stunning guitar performance, he thinks, “I want to try talking to him” while unable to seize any opportunity. One day, Haiga attends a club drinking party, and at the upperclassmen’s suggestion, he ends up experiencing first-hand what happens at a gay box hell*…? A campus love story that started by chance between a sociable young man X Cool, beautiful senpai working the night life. *Note: A "gay box hell" is a prostitution service shop.*

Deto and delinquent Zono are merely opponents. But then Deto discovered Zono's weakness. If his neck is touched, Zono will let out erotic sounds. Hearing Zono's erotic moans, Deto's lower-body reacted and left him confused. One day, Deto ran into Zono, who was beaten into a pulp by his father, despite being very strong in fighting. Deto rushed in to rescue Zono. And why was Zono wearing fancy, cute-looking clothes?

As a popular out gay man in his neighborhood, Kiumi is a college student in the middle of enjoying the slut’s life of having sex every day with a different person! One day, he gets dragged into trouble with — and is saved by! — a closeted gay man from his same university, Kuroki Shizuno. Rushing off to Kuroki's nearby apartment (only for shelter, nothing more), breathing raggedly (from running, of course)…they’ll only do it once!! But as Kiumi draws close to Kuroki, he suddenly notices a collar on the bed and a dick thrusting against him?! Still, doing it up the butt feels surprisingly good…

After his divorce, Nogami starts working at a cat café. There, he meets Kume, a regular customer. When Nogami finds out that Kume has nowhere to live because of his boyfriend's affair, he invites Kume to stay with him. What will become of their living arrangement…?