"My younger brother can't be this cruel..."

One late night, Ayumu Takano suddenly received what his younger brother, Kiriya, called a consultation—a coming out. The content was that he was a fujoshi, or rather, a man who loves BL and has the hobby of thinking about romantic relationships between two men whenever he sees any two men. Surprised and confused by the sudden revelation, Ayumu, who is openly a brocon (brother complex) by both his own and others' admission, is deceived by Kiriya's words and becomes his slave. As a result, a school story unfolds involving Ayumu's friends and others—or so it should be...