Min-Ji and Yu-Na have been best friends since high school, and Min-Ji counts herself lucky to have someone so pretty and kind in her life. She just knows that when she finally starts dating, she wants it to be with someone as amazing as Yu-Na! Everything seems perfect, but things start to change when Min-Ji begins having dirty dreams… ones starring Yu-Na herself! Min-Ji chalks it up to her own loneliness, but for some reason Yu-Na starts acting strangely when Min-Ji tells her about it… Is she upset, or could it be that Yu-Na has harbored feelings for Min-Ji all along? From unrequited love, excitement, and obsession, just where will these bad thoughts lead them?