The Temptation of a Mysterious Beauty and the Incompatible Match - Kiyora Soyama, a perfect honor student high school girl, collapses due to an illness and undergoes a brain transplant from a male middle school student. After the surgery, she can't stop having lewd fantasies about her friends and the women around her...?! Kiyora confesses her feelings to her friend Tomo, and they start dating. However, their relationship faces numerous challenges...?! A mysterious beauty, Kaho Tsukimura, approaches Kiyora and tempts her. And there's the wall of compatibility, as both Kiyora and Tomo might have M tendencies. What choice does Kiyora make to overcome these difficulties?! The third volume of the forbidden high school girl delusion comedy!!