LOK YEUNG asks KAI-CHUNG whether he saw SWEET POTATO's pendant, which looks the same as the one bought by CHING-LAM in Thailand, and she suspects that CHING-LAM might know SWEET POTATO. During hypnosis, SWEET POTATO sees himself hugging MO TAU and MO KWA. It turns out that KAI-CHUNG saved a gang leader called HO CHING-TUNG, who is SWEET POTATO's real identity before his memory loss. At that time, CHING-TUNG tried to give KAI-CHUNG some money to express his gratitude for saving his life, but was tactfully turned down by KAI-CHUNG. Later, KAI-CHUNG once again ran into CHING-TUNG when he tried to take shelter after being hounded by his creditor as the surety of his heavily indebted subordinate.… ...