Bai Sheng is a thief
who is so skillful he can snatch things in broad daylight without getting caught, hence his nickname, The Daylight Rat
. He can travel quickly across rooftops and sneak into guarded places, which makes him useful as an infiltration agent. He is sent into cities to spy
and set buildings and structures on fire as an invasion tactic. His willingness to undertake these actions demonstrates a large degree of courage.
His honor is his courage's equal. After a slightly foiled plot, he is captured while the rest of his companions make an escape. In captivity, he refuses to divulge the identities of his accessories while under severe torture. After he is liberated by Chao Gai's army he is given refuge, and ultimately becomes one of the Outlaws of the Marsh.