College student Ji-woo has a major problem: she always fails at the 'moment of truth' whenever she tries to get intimate with a partner. The culprit is Geureung, a male virgin ghost who is perpetually attached to her. After Geureung successfully chases away her lovers one by one, Ji-woo ends up breaking up with her seventh boyfriend. However, when wine accidentally splashes onto a talisman meant to exorcise him, Geureung suddenly gains a physical human body. According to a shaman, Geureung was born from his intense feelings for Ji-woo, and if he remains in this state, he will eventually turn into an evil spirit. The only way for him to find peace is to 'lose his virginity.' Thus begins a chaotic cohabitation rom-com between a college student who wants to love with her whole heart and body, and a devoted virgin ghost who will disappear if their love is fulfilled.