Seven-year-old Ji Yuqing said unreasonably to her parents: "I just want a brother."
So she had a brother named Ji Yan
Ji Yan is actually jealous of Ji Yuqing, but as she said:
"Brother, everything you have is given by me, how can you hate me."
Arrogant and willful young lady x cold and paranoid brother
Purpose: Love others first, love yourself first