Bai Sheng is a fictional character in Water Margin, one of the Four Great Classical Novels in Chinese literature. Nicknamed "Daylight Rat", he ranks 106th among the 108 Stars of Destiny and 70th among the 72 Earthly Fiends. Background Bai Sheng, who lives with his wife in Anle Village () in Yuncheng prefecture, Shandong, is nicknamed "Daylight Rat" because he is a do-nothing who spends most of his time on gambling. Robbing the birthday gifts Bai Sheng once received help from Chao Gai, the headman of Dongxi Village in Yuncheng County. When Chao and his six confederates plan to seize valuables in transportation to Grand Tutor Cai Jing in the imperial capital Dongjing, Chao suggests using Bai's home as their base as it is not far from Yellow Mud Ridge, where they would stage the hijack. Wu Yong, the strategist of the gang, suggests roping Bai into their plan. In fact, Bai Sheng assumes a central role as a fake wine seller. The plan is to beguile the escorts of the valuables to drink the drugged wine in one of his two buckets. Bai crosses the ridge carrying the buckets suspended on a pole on the day the soldiers, disguised as merchants, come by its top and take a rest in a grove as the weather is terribly hot. Meanwhile Chao Gai and his gang, posing as date traders, are already there pretending too to have a respite in their journey. Happy to see a wine seller, the escorts think they could have some refreshment. But their leader Yang Zhi forbids them stressing caution. Chao Gai and his gang pretend to approach Bai to buy a bucket of wine. Bai initially refuses to sell them any in a sham act to further disarm the escorts. Anyway, his wine is not yet spiked when he relents and allows them to take one bucket. Then Liu Tang pretends to steal a free scoop from the other. Bai Sheng chases after him when Wu Yong also tries to pinch a scoop. Bai snatches the scoop in Wu's hand and pours the wine, now laced with drug, back into the bucket. As the "date traders" are all right unaffected by the content in both buckets, Yang Zhi grudgingly gives in to his men's plea and allows them to buy the remaining wine. He himself also has some sips. Bai Sheng leaves the scene once