Day 1 f2p.
Criticize away.
I have Agata and Estra regaining memories currently. I'm undecided about the third. Whenever I get a new character, it'll be them, because I always get them to at least 2 stars. Kvare seems the most likely choice for my playstyle. I would do Saffiyah, but I don't really like her mechanics, so that's a lower priority. I haven't been using Homa all that much, mostly out of having already solid choices and not wanting to use much else, but I'm considering her as well.