A young yet awkward postulant (with a penchant for creating mayhem) reluctantly agrees to impersonate her twin brother in order to save his chance at becoming a k-pop star.
Though hating her presence, Hwang Tae-kyeong finds and resents Go Mi-nyu's perils sparking his humanity. He insists she leave, but a photograph changes her resolve.
Yoo He-yi forces Shin-woo's feelings for Mi-nyu into the open, and Mo Hwa-ran decides to hold back her family truth till Tae-kyeong finishes recording her song.
Mi-nam wakes up in the dormitory to find that she offended Tae-kyung while drunk the night before. While trying to make it up to Tae-kyung, Mi-nam continues to annoy him.
When Tae-kyeong loses his way in semi-wild countryside, only Mi-nyu's personal knowledge of his idiosyncrasies and short-comings (night-blindness among them) can determine his location before nightfall.