A Very Adorable Little Chinese Medicine Doctor

An elderly traditional Chinese doctor wants to pass his medical skills on to his children. But his eldest son has spent years away from home and has no interest in medicine, while his youngest daughter is still too young. Left with no choice, he takes in a brilliant young disciple, hoping to make him his son-in-law. Who could have guessed that this little son-in-law would grow up to become a husband-wife?