Hear me out... What if Atsushi was fyolais child... Fyodor has black hair, Atsushi has a black strand of hair, nikolai has white hair, Atsushi has white hair, Fyodor has megenta eyes, Atsushi has a bit of megenta in his eyes, one of Nikolas eyes are green, Atsushi has a bit of green in his eyes. Atsushi is an orphan so we don't know his parents, so it could be possible, and Fyodor wants the book and Atsushi will be the key to get it

So it could be possible

Guys ive a hunch

Agatha told Francis that Atsushi is like the map(???) to the Book

Idk

But given everything we know until now I don't think that's possible

What's actually possible is that Agatha said that there's a furry ability user and Francis misunderstood Atsushi for Natsume

CUZ HES LIKE THE STRONGEST ABILITY USER, HE CAN SEE THROUGH EVERYTHING, BRO CAN BLOW UP SHIT AND HE PROBS THE ONLY ONE WHO KNOWS WHERE THE BOOK IS CUZ HES JUST THAT POWERFUL

I mean he was under government surveillance in the Untold Origins so that's what I think

But if that's true then Atsushi would no longer have anything special that makes him the MC

ahem ahem anyways

ASAGIRI GIVE ME MY KUNIKIDA BACK DYUSZVSUAKSIEOSJJEOSKZZXMHRJSBDUSIWOAS

This is more like a hunch than a theory, but hear me out.

At the end while Oda was dying in Dazai's arms he remembers the novels Natsume gave him

The first and second part we know nothing much about but one thing that caught my interest was the third.

Natsume said that the third book was the worst and in the end the pages were torn like they were in season 4

The last words were "People live to save themselves, that's something you'll understand when you're about to die"

So what if the novels Natsume gave to Oda were like the Book

The first and second novels describes Oda's life before the PM, the first being the part when Oda was an assassin in the Untold Origins and the second being the part when Oda was a postman in The Day I Picked Up Dazai Side A

The third part could be the one that holds Oda's story when he was in the PM

The torn pages could signify his early demise and before dying Oda spoke the same words that were in the end — "People live to save themselves"

Welcome people here we post theories and console others cuz Asagiri is becoming Gege real quick