The gun and Persona both fade to nothing, he's willing to hear these two out given the fact that they aren't attacking him... Part of him thinks it might be a trap, but he'll extend a bit of good faith to the guy given what he's starting to think these 3 are.
"It's fine, he's... Well, I don't think he was much of a threat to me. Some kinda control over most elements or something? Or he just happens to cast ice and dark spells, either way, I wasn't gonna hurt the kid too bad, uh..."
He'd dust himself off, bits of water and butterflies clinging to his suit. Then, Tatsuya bows to the two for a moment, not really taking his eyes off, but clearly apologizing.
"I should also Apologize, I'm... Not too comfortable with things like uh, what this place is. Brings back a lot of bad memories honestly, and I have a bad habit of thinking the worst when dealing with beings beyond the normal. I'd do it again to be honest, but sorry for rushing back here. Anyways, given that you two are uh, not trying to kill me I'm gonna leave things be."
That being said and done, he'd then look around the room once again. Rather curious about both whatever this place is, and the state of the boy... Regardless, he'd turn back to them and go on.
"Anyways, lemme take a guess as to what you lot are, and tell me how far off it is... In so far as I can tell, you Mr. Golden Eyes, are somehow or another a fragment of Philemon split off from the main being. Maybe even not entirely aware of what he knows? Yet your knowledge of me... Moving on, the boy over there, part of the Crawling Chaos from what I was feeling when he called upon that power. Not as openly dark and dangerous, yet still quite something not quite right."
He then turns his eyes to the girl, her he's far less sure of, and can't take such a good guess of her nature because of it.
"As for you, I honestly am not sure, you don't strike me as one of those yet you are clearly connected to it all... Curious indeed."