A story based on Choi In-ha (Park Shin-hye) who has Pinocchio syndrome, hiccuping when she lies, and Choi Dal-po (Lee Jong-suk) who has incredible memory. Choi Dal-po’s father was framed by the media and that led to his mother’s suicide. Young Dal-po found himself growing up as In-ha’s uncle when he came across her grandfather with dementia and was legally adopted.