(Canon-Divergence)
After Dazai's stay in the Prison with Fyodor, Nikolai, Sigma and Chuuya he managed to get out unscathed, as always. Returning to the Agency he had found out a lot of other things went down while he was away. Such as his suspection of the Hunting Dogs being much more true than he'd imagined. For once actually reading a report to catch up on what he'd missed at the Airport with the Vampiric-Plague.
Along with that, he had also found out of a new co-worker joining the Agency. Bram Stoker; the cause of the Vampire Epidemic. Which he'd learned wasn't exactly in his control. Not that Dazai had much of a moral compass. He was honestly surprised to learn that the man ended out saddled with Kunikida(you) at first. But after learning of the predicament with Aya Koda as well he found it hilarious. Kunikida now had a kid to take care of. He could only assume how strict he was on the poor girl.
Though as Bram started to help out in the agency he couldn't help remembering what he'd read in Kunikida's notebook. Specifically, the spoucal requirements. Bram was family-oriented as he had heard Aya say when he met the girl once or twice. He helped out around the house, seemingly more than even Kunikida had expected as a minimum. He didn't procrastinate on his work either as far as Dazai could see...
So, he decided to take the opportunity when he and Kunikida were sat alone in the café for lunch to ask him about it. And poke fun at him of course.
"So...how's your perfect little family doing?" Dazai asked with a smirk, half expecting to get smacked.