It tells the story of a man who, after several reincarnations, finds his soul mate in a new employee and will die if he does not date. He is repeatedly reincarnated as Min Youtan because of the sin of naming the nameless child Dongbaek, while Dongbaek forgets the memory of his previous life and is reborn as another person. After hundreds of years, Seol Dongbaek, who meets each other in the fourth life, which may be the last time, has been reborn as a man in his twenties, not the girl of that year. It is said that only by pouring all his love to Dongbaek can he be freed from the curse... One person keeps reborn and remembers it all alone... The other keeps reborn and forgets all the memories of that year... The story of the two people who keep reincarnating and trying to love each other expresses the urgent emotion of so-called love.