Su Jin has been secretly in love with Jiang Li for four years. As graduation approaches, he finally musters up the courage to confess his love to her, but as expected, he is declined. Depressed, he went to a bar to get drunk, but unexpectedly the wine was drugged. During the chaos, he was brought home by Jiang Che, a mysterious roommate who rarely appeared during college. When she woke up the next day, Su Jin was horrified to find that she had turned into a girl. After spending time together day and night, he was gradually conquered bit by bit by the gentle and reliable Jiang Che.
