Hotel owner Woojin Yoon tries his best to make his childhood friend Sarah Cha fall in love with him, but it always ends in failure. Not only that, what seems to be a rival appears, who goes by the name of Moonblossom Ryu. Sarah and Moonblossom's close relationship makes Woojin fume with jealousy, no matter how much they deny that there is more to the relationship. Woojin thus tries to use Moonblossom to become closer to Sarah, but his plans turn for the worse when he is left alone with his rival instead. Will Woojin get his wish and finally become Sarah's one and only, or will fate lead him to another?