Curate, connect, and discover
Here's a theory, bram is only playing a prank on everyone bcs it's actually Aya's birthday!!! After he stabs fukuchi confetti will pop out and then fukuchi will stand, wiped clean from the blood on his clothes! And then suddenly they're all dressed up like Akutagawa from the 2hourslater scene! Except for atsushi bcs he's a very slow walker. Dazai and Chuuya will arrive on a pretty pink helicopter, throwing down gifts for Aya from everyone! And if you're wondering about the 2hourslater scenešš well it's obvious!!! It was piƱata fukuchi! No one else could destroy the piƱata fukuchi and Aya became sad bcs she can't get her candy, so Atsushi and Akutagawa work together to break it! They will succeed and candy falls out of piƱata fukuchi's stomach and they all live happily ever after! and sigma wakes up when Dazai and Chuuya are kissing. And then Fyodor looks down from heaven with Karma, they're looking at everyone and says "They are...the bungou stray dogs."
And then post sequence, Nikolai is seen sitting down near a grave that says "Dostoevsky" and then he does the thing that Grell from black Butler did and it turns out he was actually pregnant all along!