DAMN I JUST FINISHED READING THE BEAST MANGA

AND I’M JUST MINDBLOWN with the mere fact that beast dazai came in contact with the real world dazai

but i did have a question, in that case, someone wrote this story in the book right? who wrote their story and other multiverses? coz base on what i understand in the manga, the beast world is one of the written worlds INSIDE the book while the real world exists OUTSIDE the book. and beast dazai told beast atsushi and beast akutagawa to protect the book in their world coz their world might vanish.

so who wrote the book? dazai in the real world? he had the book all along? or am i trippin on some facts HAHAHAHA HELP ME

ps. can’t also imagine the fact that the real world dazai has many connections from other dazai’s in other multiverses. how crazy is that. instant headache lol