14 year old Eun-Dong is engaged to a woman 7 years older than him. He discovers that the woman likes another man. Eun-Dong is shocked and wishes that he could protect his love. After the wish, Eun-Dong becomes a 25-year-old man.

Tae-Ri is an heiress from a wealthy family. She seems perfect, with an attractive appearance and a great educational background, but after being hurt by her first love she doesn't believe in love anymore. Her family is also jealous of her and Tae-Ri now seems cold from a distance.

Suddenly, in front of Tae-Ri, Eun-Dong suddenly appears. Tae-Ri begins to have feelings for Eun-Dong ...