Lu Jiashu. I need to talk about this guy because honestly he stole every scene he was in and I'm not even sorry about it.
Here's this kid who gets stripped of his title, told he's not the real young master, and what does he do? He doesn't crumble. He doesn't run away. He stays. He takes the dirty work the family dumps on him. And then at the birthday party—Lu Huaijin's birthday party, where everyone is pretending Xia Nanxing is destined to be with her crush—he shows up and says the quiet part out loud: "So someone still remembers my birthday today."
That line. That single line. It hit me like a truck. Because throughout the whole chapter, Lu Jiashu is the only person who actually SEES Xia Nanxing. He watches her chase after Lu Huaijin for the hundredth time and instead of joining the crowd judging her, he calls her out: "What are you following him for? To humiliate yourself?" He's harsh, yeah, but he's also the only one telling her the truth.
And the way he and Xia Nanxing interact? It's not romantic in a cheesy way—it's something more interesting. They've got history. They went to the same high school. He mocked her when she was pursuing Lu Huaijin, sure, but now? Now he's the one protecting her from situations she doesn't even see coming. When Uncle Lu pulls that knife, who helps her up? Lu Jiashu. Who scolds her for being reckless? Lu Jiashu.
Meanwhile Lu Huaijin—male lead, golden boy, whatever—can't even be bothered to look at Xia Nanxing after she literally throws herself in front of a blade for him. He finds Xia Yingying in the basement and immediately forgets Xia Nanxing exists. The contrast is brutal and I love it.
The sibling dynamic between Xia Nanxing and Xia Wenbo is also worth noting. He's the only one who actually defends her. When the doctor arrives and both Lu Huaijin and Xia Yingying try to get close to her, Xia Wenbo slaps their hands away and says "Get lost." That's loyalty. That's family. And honestly, it made me respect Xia Nanxing even more—she may be obsessed with Lu Huaijin, but she refuses to sacrifice her brother's dignity to please him. When he apologizes for her, she nearly cries. Not because she's weak, but because she feels guilty. She won't use him as a stepping stone. That's a line she won't cross, and it says everything about who she really is underneath all that "love brain" behavior.