Why didn't Zhihua choose Erkang?

1, Erkang accompanied Wei Zi. Er Kang was accompanied by Wei Zi, and Wei Zi was afraid of Wei Zi for Er Kang's sake and didn't want to touch this.

Yongqi is a prince. When Zhihua learned that Yongqi was the future prince, he immediately changed his mind and performed well in front of Lafayette many times, because Zhihua later became Yongqi's side Fujin.