Itsuki and Airi are lovers in high school and like to flirt. However, Airi's older brother Yuuchi is their homeroom teacher which results in the brothers always bickering. Airi is always bickering with his brother since he cares for the older brother who raised him in the place of their parents.
From Lewd4Yaoi: Itsuki and Airi are a pair of lovers that anyone would ask for. Their love lives are filled with rich and intense pleasure and sweet affection with nothing to complain about. If there were to be, the only worry that Itsuki has is the bad relationship between Airi and his older brother, their homeroom teacher, Yuuichi. Itsuki though It will be great if they could improve their brother relationship? But Itsuki realized that Airi?s attention was not just on him. What is like? (?? Suki) What is love? (? Ai) What is this painful feeling? A confused sadistic boyfriend x A cute, cheerful and erotic lover. A lovely bittersweet romance of two awkward adolescents
Boku no Kareshi no Sukinahito