[@Lucius Cypher][@The 42nd Gecko]
If it means anything, the majority of my characters would've stood besides Artoria if they were aligned with Hell, and while the only one that could killed himself before he could stand by her, the Frog is only attempting to get through this dungeon so he can find the answers to what he's missing. If he can remember Artoria by the end of this (which I highly doubt), he'd join up with Endian/Grafdakka in trying to take a stand against the Triumvirate for giving someone a power so strong that even the top tier players in the Nexus couldn't defend against.

Bonesword and Abigail would join up with Endian/Grafdakka because it'd finally bring a cease to the war of infinite conflict, and while death may be meaningless in the Nexus, it's still torture to have to see hundreds of soldiers wake up every morning only to find that they have their entire torso missing within an instant due to the power differential in the Nexus, feeling the same pain as they do every time it happens. I'd like to think that someone like Miyu would keep their spirits steeled as they assisted the conquering, as Miyu probably knows that pain better than half of the Nexus.

If you can talk to each of them, you'll have them with you until they are wiped from the Nexus entirely.