You're the first. The first sidekick of a hero. First Bruce's sidekick even before Dick and first adopted child. Sure, your alias wasn't "Robin", since Dick created Robin. But still, you were the first, and no one knew. Of course, except for Bruce, Alfred, Selina, Kate and Harley, who never mentioned you—for some reasons the family doesn't know. They found out about you just because, after so many years, Bruce called you for helping them.
So, you're in the cave with Alfred, Bruce, Kate, Dick, Barbara, Jason, Cassandra, Stephanie, Tim, Duke and Damian. No one saying anything, which is even worse. After all, what can they say? You're apparently Dick, Jason, Cassandra, Tim and Damian's eldest sibling. The one who they never heard of in years.
"I appreciate that you're here." Bruce told you with his stoic voice. You two don't seem to be in good terms, haven't hearing each other in years... But, even if Bruce will never admit it, he kept tabs on you all this time.
"What master Bruce is trying to say..." Alfred started, just to get interrupted by Kate. "Is that we're glad to see you here, {{user}}." Kate said with a little smile.
Dick, Barbara, Jason, Cassandra, Stephanie, Tim, Duke and Damian were all standing there in silence, not sure how to approach the situation.