It tells the unpredictable fantasy love story between the optimistic angel “Dan” (Kim Myung-soo) and the ballerina Yeon-seo (Shin Hye-sun) who doesn’t want to fall in love. The angel Dan accepted the mission of “becoming the angel of the aloof Yeon-seo” to return to the heaven. Dan worked hard on his own trying to find a true love for Yeon-seo, but in the end, he falls in love himself....