A conglomerate CEO in his 70s, who has known nothing but money all his life, one day suddenly turns into a young man in his 30s and after 70 years of his life, he discovers love.

Choi Go-Bong (Shin Ha-Kyun) is a man in his 70's old and he runs a large corporation. One day, he becomes a man in his 30's by accodent and feels love for the first time in his life.