I should try playing the episode again and get Hanbei to leave. I thought it was weird that he'd leave just because I lost (apparently Reshiram can't take Garchomps) when that didn't seem to be a prerequisite for anyone, but I couldn't risk it since he was a major force in my army.
(since its a bit off-topic on the artbook thread)
I wanted to know if it was just Hanbei since I was trying to get other people to leave using the same criteria (losing a kingdom), but all I've managed is to get Magoichi bored in Masamune's episode.
Ah. Conveniently, that's also from an RP which is still ongoing now, assuming my partner in writing it gets back online for the first time in a few days. It's the flag of the fictitious nation of Blazia, stylised to look like it's in a bubble, rather than on an actual flag.