Jung Da-Jung (Kim Ha-Neul) is married to 37-year-old Hong Dae-Young (Yoon Sang-Hyun). They have actually have 18-year-old son and daughter. Jung Da-Jung works hard as a rookie announcer and she has actually a heat heart. She i do not care completely digabung up v her husband and is can not to address him anymore. Hong Dae-Young obtained fired indigenous his job and he is looked down upon by his family. Jung Da-Jung tangan him divorce papers.
Meanwhile, Hong Dae-Young looks at himself together an plain jobless middle-aged man. The regrets his life. At the moment, his tubuh changes right into that of an 18-year-old tahun old person, kapan his mental is still that of his 37-year-old self.
Kembali in his teenage days, Hong Dae-Young (Lee Do-Hyun) was an excellent basketball player and also popular. Now, v his regained 18-year-old body, he changes his name to Ko Woo-Young and begins to live a brand-new life.