Art student Yuna needs to complete a nude drawing assignment for school and asks her boyfriend to be her model. However, he becomes aroused halfway through and starts making advances, making it impossible to continue. Troubled and unsure what to do, she is surprised when her father suddenly offers, "If that's the problem, I'll help you out!" Convinced by his words, Yuna accepts his offer. But when her father stands completely naked before her, she realizes something within her is reacting in an unexpected way. The story unfolds as Yuna struggles with confusion and conflicting emotions over this sudden turn of events.