Kimi ga Kemono ni Nareru made

College student Aki, a sexually uninhibited sub, feels the intense stare of an unknown individual while engaging in intimate activities—the "eyes of the beast" characteristic of Doms who command subs to kneel and submit. Since that moment, Aki has been unable to forget those eyes. Mitsuru, Aki's younger childhood friend, harbors deep feelings for Aki despite knowing that subs are not compatible with ordinary individuals. When Aki decides to take up a part-time job for a clinical trial on suppressants to earn money for university tuition and resolves to find a Dom to live with him for two months, Mitsuru discovers this plan and intervenes, his own gaze mirroring those unforgettable eyes.