[Ren seemed to have developed a habit over the years of trying to shoulder everything he could carry for Ai so that she would not have to do so alone. It was only fitting that he do so for his mother on occasion.
He was living proof of a love that she had tried to deny herself, out of loyalty to his other father. He had somehow gained that understanding over the years, despite having only ever known the two parents he'd grown up with. He did not know what they had been like as Ai had grown up, having only heard stories. Now that he was faced with the real possibility of it he felt a bit lonely. Neither of his parents knew him or Ai, for that matter.]
My name is Ren and I am... much, much older than mother is now. Or Ai.
[He can't help but laugh a little at the irony. She was his big sister and yet the Ai here was several centuries younger than he knew her.]
A thousand years old... it's kind of strange to be older than mother and father and Ai.
[And he will just keep to himself how long his mother had kept Ai and his father waiting to meet him. That was between her and his father, after all, even if he had already confirmed it to Ai's inquiries.]