S1·E20 Episode 20

Chen Kun tells the Ming brothers his past that his lover was forced to marry Yang Ting-tien, the chief of Ming Clan. Ting-tien died when he discovered they met secretly. Madam Yang killed herself out of shame. Chen Kun swore to exterminate Ming Clan. He used all means to ruin the reputation of Ming Clan.

Wu-chi knows Chen Kun is the enemy of his god-father, and therefore, he chases him. Hut he is kept in a secret passage with Hsiao Chao. There, they find the Kung Fu of Ming Clan. Wu-chi learns it and comes out. However, King Clan is already in a dangerous condition.