My Father, The Hidden Dragon

Long Shou, Lin Haichuan, who had been an undercover agent for many years, managed to destroy an entire criminal gang in one fell swoop. Just when he thought he had completed his mission, he unexpectedly discovered a large drug trafficking organization. He had no choice but to hide his identity again to gather clues. At home, his children didn't understand him and complained that he was of no help to their personal development. Little did they know that in many cases, it was actually him who had secretly lent a hand, but each time his children thought it was their own doing. By a strange twist of fate, they got involved in the major drug trafficking case.