Milana Stark's Links
Ponzu primarily knows Milana through the chasms incident, and the two of them relate well due to similar work backgrounds. While he's begun to wonder what her workplace has been up to, he trusts at the least that Milana will make sure things don't veer into anything dangerous.
Being one of the first Chasms divers Ivory has met, Milana makes it undoubtedly clear that the sudden influx of supernatural monsters has put many on guard. And while he knows that she, among others, are doing it for her safety, he can't help but want to alleviate some of those fears, even if a little.
More recently, Milana (alongside Claude) have been experimenting on the watches that summon persona, and Ivory, always curious, has been actively helping out. While he does wonder if him absolutely not being human effects some of the test results, he figures having a niche case might help to broaden their research.