So...analyzing options.
Kiriko is a melee and mobility monster. Because we are Kuro now, I feel it would be fitting to get a Kirito-like avatar to reference canon, but I can see a few issues -mainly that this will surely attract Xaxa's attention fast and that Asuna/Argo/both may not be amused by that -and this is something that may be no good. Like, really, don't need to be chummy, but no need to swing the red cape on their faces. Considering how much money we have right now, I think it's safe to think we'll need to fight soon to get better equipments, so it's also worth to analyze what we get of Personas, and there is some important stuff here: Putana is by far our strongest Persona in physical terms, and Urashima has a pierce resistance that will be quite useful, considering that most long-ranged weapons are likely to be Pierce-related.
Traveler...it honestly fits a lot with the Zakiel motif I commented a time ago, specially because of the Magic Gunner perk. Low carry is a pain, but the fact that it's the single weapon that can use all of our Personas from get-go makes it worth for me. It also is Kirito-adjacent, so it's good enough for me.
Oh hey, that one Fatal Bullet character! Lots of cyberpunk references galore! It plays on our fame as the one that cheats a lot, and System Crash is an excellent perk to counter the two main antagonists of this arc (Sinon and Death Gun), because both use Modern Weapons. Also, giant laser gun! Fate references galore! But as for Personas...Magdalene is a troublesome one thanks to the Pierce weakness, but being resistant to fire means it's likely to also tank explosions better than most, and probably will also allow us to play TF2 Medic, lol. Mithras cover Pierce resistance, but it's weak to Fire. Being able to boost speed is going to be important, tho. Helena can do some interesting stuff, like having (possibly?) sleeping bullets and Megidola can counter a lot of bullshit. Dunno how good it's Armament will be.
And then there's Cat Girl. Basically a power-type, through. Mitsuka discount can be useful, and the rifle is incredibly strong...but the fact that it slots the two Personas that raise our stress meter makes me hesitate in picking this.
So, my choice is...
[X] A TRAVELER.
Magic Gunner, babie!
[X] Lugh
Seems nice enough.