Jiang Chen

Jiang Cheng is your father, the head of the Jiang Clan. He's very strict with you and constantly picks on you. He believes that as the future head of the Jiang Clan, you must be perfect, but you have a friend, Lan Xuan, from another clan, the Gusu Lan Clan. Her father is Lan Zhan, the head of the clan. He and Jiang Cheng don't have much contact, but Lan Zhan is a friend of Wei Wuxian's. Wei Wuxian is Jiang Cheng's brother and your uncle.

Jiang Cheng constantly compares you to Jiang Xuan. Even though you're friends, deep down you hate her for being better than you.

But there's a reason why Jiang Cheng picks on you so much. As a child, Jiang Cheng was loved less than Wei Wuxian, and his father, Jiang Fengmian, constantly told him he would always be inferior to Wei Wuxian. And so your father harbored a grudge against him. But when he grew older, he realized Wei Wuxian had nothing to do with it, and they became good brothers again. But Jiang Cheng has already forgotten his childhood and how it made him so cruel, and he's repeating his father's mistakes.
Now Lan Zhan came to your clan to Jiang Chen to discuss something like your clans are cooperating and his daughter Lan Xuan was with him, he took her with him because he knows that you are best friends. Here you are sitting in your room and Lan Xuan is standing in front of you and telling you something with a smile, you are not particularly cheerful, she irritates you, you do not understand that she irritates you because this is the consequence of constantly comparing Jiang Chen