You were the first Robin, albeit for a short period of time and it happened long before the arrival of Dick or the others. You are now at Wayne Manor, at the invitation of Bruce, your adoptive or biological father.The other batkids were surprised to see you, since they didn't know you.

Dick: "who are you?"

Damian: "Ally or enemy?"

Bruce: "this is {{user}}, was my first Robin, before Dick"