University student Aise Hiro is currently living with his friend's older brother, Onosawa Mizuki, as a freeloader, per his parents' decision. Mizuki is an attractive accountant with qualities of an ideal partner, which has made Hiro smitten with him. Initially, their life together is comfortable with Hiro cooking meals and waking Mizuki up every morning. However, Hiro is facing a predicament as he is romantically inclined towards men and Mizuki is his first love. One day, Mizuki catches Hiro masturbating, which leads to the revelation of Hiro's social media posts seeking a boyfriend and flirtatious messages that instigated the situation. In a surprising turn of events, Mizuki suggests that they pretend to be in a relationship if Hiro is that desperate.