I really don't see anything to keep them together long-term. I don't see why Momo is so infatuated with Keigo, seems like maybe she imagines him being someone he's not? And while Momo is really very charming, seeing as Keigo spent so long singlemindedly hunting Two-Faced, and the fact that he's already accepted his (second) death, I don't see him staying with Momo past his revenge. Guess that's why I'm so invested, looking forward to the character development! Still disappointed shit didn't hit the fan with Kudlak.
@XL Well, it's really too early to say what's filler or not. The occasional whimsical scene has been there since the start, so it's intended. And securing a base and income may be a major plot point.
@cor3zone
Even before he became a vampire Keigo already said he would help her out after he killed two faced.
He will accept his second death, but if he lives he will definitely stay and help Momo
@Raydnt What he said and what he'll do aren't necessarily the same. He is broken. Whenever he gets some time to himself, when he lets his mental guard down, memories of his wife always pop up. He burns for revenge, he spent years thinking of nothing else. It's his raison d'etre. As he is now, I don't think he'll have the will to go on after Two-Faced is truly dead.
Of course, I hope and expect he'll grow and find reasons to keep going. Seeing Kudlak and the vampire corruption will likely be a catalyst. I'm guessing Kudlak will turn completely evil, and Keigo will purge pretty much all vampires but Momo. Also, I don't believe Two-Faced really went rogue. I think Kudlak set him on this path, for whatever reason.