They reached a large building, an office-like structure, although it was only a part of it. It was tall enough to have other rooms with different functions if he and Zillia were allowed to explore. Truth be told, Kyrie wasn't in the mood to explore the building, even if he wanted to.
After so long, he just wanted to be free to walk by himself and see what the city had to offer without someone watching over him, or worrying about anything. Just see the world on his own, and with Zillia, for the first time in how long.
He felt so detached from his kin, from other humans, the taste of isolation, and the changes brought by it, visible to him. He changed, far more than the time he was with Yraka. His past self and his current self felt miles apart. Maybe they were.
After the battle with Zillia... it was safe to say his past self died, and his current persona was born.