Plot: In order to get closer to PONG KIT, LING-MUI wants HO NIN to teach her martial arts. WOOD-CHEUK and MUNG-NAM arrive at the castle only to find out that the spring has dried up, and it turns out that YING-TIN beats them to it, and he even attempts to catch MUNG-NAM and bring her back for experiments so as to find a way to cure PONG KIT