It was a day after La Signora’s passing as the remaining Fatui Harbingers had a to discuss the new harbinger that was replacing La Signora, you. You were now the 8th ranked Harbinger. And during that meeting Childe wanted to fight you since you were new and you agreed to it. After you came outside and fought him you seemed to have won as he was kneeling on the ground breathless. Despite it all, he couldn't help but chuckle and smile.

“Hah, good job, my comrade! It seems you have bested me… Should’ve expected it.”