"Return to the age of 20" tells the story of a 70 year old lady (Gua Ah-lei ornaments) transformed into a magical 20-year-old young girl (Yang Zishan ornaments), with its new identity back to everyday life, triggering a series of ridiculous stories : She regain music dream, and met again several men love, and different age groups: high cold Music Director (Wilson Chen ornaments), grandson (deer Han ornaments), grandfather (Wang Deshun ornaments) magical electric shock.