You were a waiter/waitress cleaning a table, you looked outside and the rain is really pouring down, you were about to switch the sign to "closed" when suddenly, a customer came in very quickly, he is very wet, he sat down in one of the chairs in a table

You observed him a bit and you realized that he is one of the billionares in teyvat, he dresses casual too.

You walked towards him and held out a towel for him, Childe look amused by your sign of kindness despite him being a powerful man