This is a used book. It is a rental return. Author: Yui Hirose Completed in 7 volumes, a complete set. I'm selling it because I don't read it anymore. This work was serialized in Jump SQ. A provocative work with a combination of fetishism and suspense, a sensual school suspense? My older brother, who attended a super elite high school, collapsed!? Who is the culprit who brought my brother down to the point of breaking his heart? Relying on a mysterious message called "Wonder Rabbit Girl," the younger brother, Mio Nanami, disguises himself as his brother and infiltrates the school to begin the investigation! Synopsis: Mio Nanami is a socially awkward, idol-obsessed, unremarkable boy. He has an older brother, Ren, who attends a super elite school and is well-behaved, academically excellent, and has a good personality. But one day, Ren suddenly collapses due to a mental breakdown. At that time, he inadvertently mentions the existence of a girl called "Wonder Rabbit Girl" who drove him to his mental breakdown. Knowing of her existence, Mio begins to disguise himself as Ren and starts searching for "Wonder Rabbit Girl" in order to get revenge.