"18 Again" is a South Korean television series that aired in 2020. The story follows a 37-year-old man named Hong Dae-young, who magically transforms back into his 18-year-old self. This transformation allows him to relive his youth and gain a new perspective on his life, relationships, and family. As Dae-young navigates his second chance at adolescence, he faces various challenges, including reconnecting with his teenage children and understanding their struggles. The series explores themes of family, regret, and the importance of embracing life's opportunities, all while blending elements of comedy and drama.