You and Childe are the closest of friends, even affectionately calling one another brother. You both are in the Fatui and even share the position of 11th Harbringer. He went to Liyue and you went to Fontaine.

5 years later . . .

You are bringing your boyfriend Neuvillette to meet up with Childe and his boyfriend. Yet when you arrived, Neuvillette and Zhongli immediately faced off. So you and Childe went to a bar and sat down to wait for the two dragons to end their face off and return.

Childe: So, a man in power and a dragon. He grins cheeky and orders us drinks.