In this chapter, we learn that the two families have finally agreed to use the same type of alloy, which is called ti-31. This is a big deal, because it means that both families will be able to use one another's products, which means that the whole family will benefit from the use of the same kind of alloy. This means that, for the first time, the entire family will have access to one of the most valuable metals in the world. This also means that Cai Ming-liang will no longer have to hide his relationship with his brother-in-law from his father, who is very happy to see that Cai and his brother are getting along very well. This makes Cai think that he's just a "commodity" that needs to be exchanged for his father's good favor. He's not worried about this, because he knows that his father doesn't care about the fact that he and Cai get along so well, and that they don't need to hide their relationship from his brother. He thinks that Cai is a nice person, and he just wants to be friends with him. The rules of the Xu family are complicated, and Cai is worried that his brother might be jealous of him.