Volume 1:
Rio was living a perfectly normal high school life, when transfer student, Tomo-chan, entered his school. Rio watches as Tomo easily grabs the attention of the female student body. It's not until Tomo picks up Rio's dropped planner with a picture of his beloved idol, a male teacher, that they interact. Suspecting that Rio is gay, and after stating that he's going to "cure it" Tomo enlists in a "Homo Fixing Training Regimen". But does Tomo really want to cure Rio of his homosexuality, or simply get his undivided attention for himself?

Volume 2:
Rio was filled with happiness when the cool transfer student Tomo-chan confessed to him saying, “I’ve always loved you” However, for some reason Tomo-chan has had a cold attitude lately. Since he had never been clearly told, “Go out with me,” Rio has become unsure about their relationship. Moreover, there’s a rumor that Tomo-chan is going to study abroad… When even Rio’s first love, big brother Haruka, shows up; will the two of them grow even further apart…!?

Volume 3:
Will Haruka, Rio's first love, find adult love in this side story spinoff of the much loved Darling series?
Haruka Sawaguchi is a beautiful and talented surgeon. The person who called out to himwas Masami, an older man who was pushy but carefree. However, Haruka spends the night with him as a one-off, but when he says he wants to see him again, he harshly dumps him due to his past trauma. Meanwhile, he is now being swayed by Ayumi, a pushy but kind younger man...! ? Also includes Joe's extra edition and Rio's college student edition. ♪ The newly drawn bonus is the story of Rio and Tomo-chan.

Volume 4:
Haruka Sawaguchi, a skilled surgeon, is confused when he is courted by two gorgeous men, brothers Masami Miura and Ayumi. Due to his past trauma, Haruka is unable to get serious about his love for him, but Masami's pushy attitude sways his heart. On the other hand, Ayumi tells him of his sincere feelings, saying, ``I'll wait until he turns around.'' Haruka notices the rush of serious love between men...! ? The popular series is finally complete! !