Atsushi who acts cat like but only when he feels safe.
He curls up and fall asleep during an agency movie night with his head on Kyoka's shoulder.
But only after Kyoka noticed how tired he was and shrugged, patting her shoulder.
Atsushi tries to subtly chase mice until Fukuzawa just let's him go nuts, just try not to make a mess.
Atsushi only sits up on his desk at work if given the okay from Kunikida.
Once becoming friends with Akutagawa, Atsushi once chased after Rashoumoun and Akutagawa just rolled his eyes fondly at his apology and said it was fine.
Atsushi may not have known it but the Orphanage probably punished him for ever acting "like that wretched tiger."
To the point Atsushi subconsciously can't act catlike unless he feels safe.
Because he's afraid he'll get punished for it, even if he doesn't remember why he's so afraid.
atsushi is at least a little bit plural-coded in bungo stray dogs: dead apple. to me
hc that atsushi finds the nearest soft item and starts kneading it with his hands when stressed because it calms him
i like to think that Atsushi can faintly smell people coming,
he can smell some green tea whenever Kyoka walks by, the sickly sweet candy smell Ranpo reeks of whenever he pops out of nowhere, and sometimes even a faint smell of white lillies of Dazai every now and then
with that being said, he can easily recognise smells he deems safe (safe being the agency) and smells that make him more alert, so he doesn't get jumpscared when an enemy suprises him, but could jump 40ft into the air if Kenji walks up behind him
let the tiger also be a part of the agency dammit
teh sillies
Finale kinda crazy. Ending even crazier. Was that actually him. Also. Atsushi's fangs were beautiful. I wish we got more Atsushi with tiger traits. I literally die of happiness every time I read a fic where he chuffs, or scents, or lays in sunbeams. The mental image of him getting hugged by Dazai or Kunikida and just getting so happy that he lets out a breathy chuff is just SO CUTE. Don't even get me started on Atsushi kneading. Don't even get me started on Atsushi expressing his affection like a tiger w/ the ADA. Atsushi and ADA platonic love is actually amazing.
Tiger instincts in not tiger body + Atsushi being sassy is just.... peak fiction. My favorite thing to read. Red in Tooth & Claw on ao3 is LITERALLY THIS and the best fic in existence. When it updates every 7 days it literally makes my week. I love it so much. I love Atsushi so much...
i like to imagine byakko only lets dazai transform her back to atsushi in ways she likes to bully him
if u dont know, my general headcanon is that byakko still overtakes atsushi completely during full moons (i mean... weretiger) but she's no longer aggressive becuz atsushi is no longer abused/alone/in danger so she just hangs around, takes walks, goes hunting, tries to eat ranpo, ya know the normal stuff
but sometimes if atsushi is scared or anxious or stressed, she'll just take over, especially at night time (weretiger i mean come on) but like still, she's chill
anyway a lot of the time she takes over and the ada get called in and need atsushi or just need atsushi back for whatever reason, dazai has to use his ability on her
and she's surprisingly nonchalant about it... kinda
dazai: okay byakko, lets have atsushi bacmphfasdfj
byakko, stalking forward to slap her paw against his face:
/
dazai: byakko there u r, enjoying the stars?
byakko, calmly walking over, getting on hind legs to place her front paws on dazai's covered shoulders:
dazai: aww missed me
byakko, licking his face:
dazai: mph-afjsslkf eww stop that
atsushi, transforming back: huh? where am i... dazai san why is ur face wet
/
dazai, seeing byakko and waving at her: there u are!! be a good kitty- oh no ... no bad kitty... stay back bad kitt-
byakko, leaping of whichever building she was on to run full speed at dazai and tackle him to the ground, transforming back to atsushi in the process:
atsushi, waking up dazed and confused on a vaguely injured dazai: wha? *falls asleep*
/
dazai: here kitty kitty
byakko: >:(
dazai: aww are u mad at me?
byakko turning away dramatically and letting her tail slap dazai across the face:
/
sometimes she's nice and puts her face against dazai's and gives him a little greeting or lets him try to pet her or grabs the end of his coat and starts dragging him away or bites his hand or sits on him or sits still and lets him transforms her back
i like to think that atsushi has longer nails that are maybe a little sharper than normal when he isn’t transformed. little leftover tiger influence yknow?
And then of course fluff and crack. Our favorite kitty learns that, well, being a kitty can be quite nice sometimes, outside of battle.
fav tags: nakajima atsushi acts like a cat nakajima atsushi has c-ptsd
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