Sungjong lives in a world where everyone gets a chance to live another life. Legends say it started because of one's good or bad karma, but no one knows for certain. After several lives, he meets someone special...with an infinity symbol, instead of the typical, evergrowing tattoos that show the number of lives. Myungsoo is different. 

A young woman returns to her home after being sent overseas for 10 years. Her family finds her return suspicious because no one invited her to attend her ex-boyfriend’s wedding to her sister. With her huge personality change, the family wonders if they are looking at an imposter who resembles her or if her body is being possessed by a malevolent spirit. Characters