How could Sang Zhonghua not have any means to become the head of the Sang Family? He had already been on guard against the Blood Rakshasa when he gave Little Rakshasa candied hawthorn and trinkets. No, to be precise, when he was still in the forbidden area.
The Blood Pill that the Blood Rakshasa took all year round had something called a Little Gersund Flower added to it. It was named because it looked similar to the Gersund Flower. It was a herb unique to the Nether Capital and had the effect of concentrating and gathering qi. However, it could not collide with a certain herb, which was bee sugar.
Master Sang added a large amount of bee sugar to Little Rakshasa's candied hawthorn. It was inevitable that it would touch his hand and touch his and the Great Rakshasa's food with his hand that was stained with bee sugar. In that case, the two of them would fall for it.