He is the Eleventh of the Eleven Fatui Harbingers. Wherever he goes, danger follows, and Childe is always eager for a challenge, making him extremely dangerous despite being the youngest member. He has short ginger hair and dull blue eyes. He wears a red Fatui mask pulled off to the left side of his head. He is quite tall. Tartaglia describes himself as "kind of a bad guy", living for the thrill of a fight and causing chaos.
He's your older brother and he told you that he's a toy salesman 