My Precious Boyfriend

Successful film director Kwon Si-hoon suffers an accident(?) one day where he suddenly transforms into the body of a 7-year-old child after mistakenly drinking a can of beer. While investigating the source of the drug added to the problematic beer, Yoon-jin and Si-hoon meet the researcher in charge, Oh Hyung-seok. Yoon-jin, an extreme realist, struggles desperately to somehow return her boyfriend to his original state, but Si-hoon, a born attention seeker and persona addict, is overjoyed, deciding to live his second life to the fullest since he's become young anyway…! Upon hearing that it will take time to return to his original body, Si-hoon enters a 'premium private kindergarten,' a life...