Kunikida loves peanut m&ms
Ranpo has shark plushies he loves sharks
Kunikida is a metalhead. He loves loud and angry music
Chuuya has a passion for fashion
Chuuya knew it was better not to ask why dazai left because he knew it was better not to
Dazai didnt go to chuuya before he left because chuuya would be the one that could make him stay
Dazai cant cook or he is a master chef. EIther one of those no in between
Dazai and chuuya use gifting as their love language same with kunikida and dazai (I ship both personally)
8 Me gusta
Yo time for my headcanons!!
Ranpo is blackmailing everyone to buy him sweets 
Chuuya had kids in the sheep and they died (in a brutal way COUGH bombed COUGH) and so he is overall good w kids
Dazai listens to male whimpering audios and shows them to kunikida to make him mad.
Akutagawa way of showing love is cutting off their leg /j
Akutagawa LOVESSSSS cats
Atsushi was called a furry by Akutagawa
Akutagawa was called eyebrowless by Atsushi
Akutagawa and Atsushi insult each other in THE MOST STUPIDEST MOST BREAKTHTAKING
Kunikida likes classical music
Fyodor has lice 
Nikolai is a cannibal
And i got more but i am too lazy to say them
7 Me gusta
stop these are so real. THESE ARE CANON, NOW.
5 Me gusta
dang, 2 times that kids got blown up in bsd…
5 Me gusta
Wuz good i am doing more of my headcanons:
Chuuya only likes black cats (out of cats i mean)
Akutagawa loves mochi (idk why i chose this one)
Yosano goes on shopping sprees w Ranpo, and they both force dazai to pay
Yosano and Dazai gossip a lot about the mafia
And kinda more but i cant post anything rn
5 Me gusta
i actually like that idea
steals headcannon cutely
but like i imagine he tries to get to know someone and than just tps them away and than eats them
4 Me gusta
i wanna share sum of my headcannons too cuz fun:
mori tried to buy fukuzawa a cat for his bday
fukuzawa has 100% adopted rampo
asexual/aegosexual poe (he reads sm/t on ao3 cuz its funny)
mori owned a black cat when he was younger
sigma hates icecream and doesnt like the cold
nikolai has sensory issues so he wears gloves (cuz those textures just like engrave themselves into your hand and it feels weird)
nikolai likes to braid fyodors hair
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Fyodor definitely has lice. Nikolai caught them from him >:3
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best way to share affection: share yours diseases and bugs with them <3
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Real >:)
Fyodor feeds his lice 
4 Me gusta
I really love these hc, i support the Fyodor’s hc has lice 
5 Me gusta
Time for ‘sad’/weird head canons of mine >:)
Akutagawa has dyslexia
Kunikida 100000% has OCD
Kyokou (or however her name is spelled) HATES french toast
Yosano is obssesed with gum >:)
Idk might add more later
4 Me gusta