After finishing a long overseas business trip, Jeong-woo becomes subject to a 14-day self-quarantine. During his boring quarantine life, he sees an advertisement for an android robot named Yoona and becomes captivated by her. Later on, he installs Yoona's "lover mode" patch after spending a hefty 20 million won. This android with artificial intelligence handles everything from cleaning to laundry, and with the "lover mode" patch, it also handles Jeong-woo's sexual desires, and he eventually starts neglecting his girlfriend, Hye-mi. In the end, he can no longer escape Yoona's charm. Will Jeong-woo's love with a robot be possible?