#it's definitely more bittersweet since dazai touching vampire chuuya is a no-no

[anticidic]

Thinking of a mix of doa!Dazai and vampire!Chuuya AU where Chuuya very much was a vampire the whole time, but instead of being ordered around by Fyodor, Dazai's in charge of him. But Dazai has to be extra careful not to touch Chuuya because otherwise it'll nullify the vampirism, and Dazai ends up feeling this strange sort of bond/kinship with vampire Chuuya?

They just end up spending so much time together and Chuuya acts as a bodyguard. The lack of communicating with one another beyond looks and blank stares from Chuuya gives Dazai a little pang in his heart. They'll just sit there at a table not talking and once in a while Dazai will get the urge to reach across and tap Chuuya to break the vampirism because he'd like to know what the real Chuuya is like. It's a shame, because unlike Fyodor or the others, he treats Chuuya as more than just a mindless servant to carry out orders and go around infecting others to serve a bigger cause.

But then there's that obvious risk of backlash from Chuuya himself and although Dazai really wants to break it, orders are orders. There's still a little bit of light in Chuuya's eyes even if the humanity is far gone and in the recesses of his mind. Dazai can't explain it, but it's there. There's that little bit of resistance from vampire Chuuya, and he acts quite a bit differently from the other vampires Dazai's come across.

They also have some silly moments, though. Dazai's had to run away from Chuuya if Chuuya ever tried to bite him—not because Dazai had to worry about getting bitten and turned, but obviously because Chuuya would end up nullifying the vampirism himself, and then they'd have an awkward moment of Dazai lying there unsure of how to explain everything while consciousness returns to Chuuya and he's wondering why the hell he has Dazai pinned to the ground, biting him.

Also, though it never had been confirmed in canon, in the AU I'd imagine the vampires all needing a source of blood and Dazai goes out of his way to take care of Chuuya. Chuuya can't bite him directly, but that won't stop Dazai from feeding him.

Also, over time Chuuya slowly learns how to become sentient beyond grunting or indistinct noises and hide his obvious vampiric appearance after being turned for so long. Dazai freaks out one day when he sees Chuuya looking so human and thinks Bram had something to do with that. Cautious, he still doesn't touch Chuuya just in case because it's obvious if Chuuya had come back to his senses, he would've left or probably tried to kill Dazai even if Dazai had no hand in Chuuya's fate but just so happened to pick out Chuuya to be his personal bodyguard.

Curious, Dazai wants to see how far people can go while under the effect of vampirism to reclaiming some sort of humanity. He goes on to trying to have conversations with Chuuya next and seeing if Chuuya would be interested in eating something that doesn't come from humans.

If it came down to it and the organization fell apart and the vampire army got wiped out, Dazai would personally choose to set Chuuya free, even knowing that Chuuya would likely turn it around on Dazai and blame him for everything. But it's like releasing a bird from a cage and allowing them to spread their wings. Dazai, also, never cared for what the DoA wanted to do. He's just looking for a reason to keep going and to see what humanity has to offer.

He finds it in Chuuya, who even while under the effect of vampirism, tried so hard to break free as shown over time by his human traits returning and the ability to talk slowly coming back to him until Dazai ends it once and for all.