Kem Na was born in a rich family, won the imperial court's favor by killing an accused sorcerer. However, the royal consort viewed it as risky to have a murder wandering around in the royal palace. Being knocked out one day when he was entering his rooms, Kem Na was transported long away from the palace.
Feeling let down by the court, Kem accepted the request when his brother contacted him. The brothers attacked several caravans After killing the Emperor's lover, a prize were put on the brothers' head. Fleeing for the outskirts of Shanghai, the brothers now attacked not-notable men.
When the brothers killed the husband of Rong Hsu, she contacted the Assassin Zhu Chen. The same evening, the bandits brought back prostitutes for themselves and for the other bandits. Taking two of them to the nearby river, Kem Na was suddenly stabbed by Rong Hsu.