Lastminuteaction - Lastminuteaction

headcanon that atsushi constantly has to try and ignore his cat instincts and constantly fails

atsushi, sitting down at his desk after a mission: it is SO HOT OUT. my throat is so dry, i think i’m going to die of thirst…

dazai, setting down a glass of water:

atsushi, looking at it:

atsushi, slowly using his hand to knock it off the desk:

dazai: ??? why did you do that

atsushi: i am SO THIRSTY

dazai, getting another glass of water:

atsushi:

atsushi, knocking it onto the ground:

dazai:

atsushi: i’m so thirsty

No thoughts, just Atsushi having tiger instincts. Atsushi having a special pillow he hides in his futon just for kneading. He hides the pillow because he was shamed for his tiger instincts at the orphanage, but as he opens up to the ADA more, different members get to see his more suppressed instincts (they think its the cutest thing ever). Dazai is the first to discover the pillow and Atsushi gets super scared before Dazai reassures him that its okay and that he thinks its adorable. This is the first time Atsushi has ever been allowed to express his tiger instincts, and in happiness, he rubs his cheek against Dazai. Dazai is shocked and Atsushi is too after disengaging with the cheek rub but Dazai quickly regains his composure and hugs Atsushi back, while rubbing his cheek. Atsushi is incredibly overjoyed about Dazai (his family...!!) scenting him and expressing his love for Atsushi that he starts chuffing too. Dazai screams

Atsushi with tiger instincts is just so adorable I can't handle it lmao. He's just a cat!!

I know I've talked about this before but thinking about Atsushi with tiger traits. Thinking about his eyes glowing at night if any light hits them and night vision. Enhanced hearing that causes a lot of sensory overload, especially during storms. Slightly hissing that just sounds like air leaving his mouth if he gets extremely startled, for example, someone waking him up from a nightmare. But it was something he would get punished for at the orphanage so it only makes anxiety worse.

i like to think atsushi definitely still has cat-like behaviour when he’s in human form.

like someone’s being nice to him and he has the strong urge to rub his head against them lovingly. new people are like wtf atsushi but the rest of the agency is just like yeah he does that sometimes.

precanon dazai taking in an orphan but atsushi's a fully feral preteen like biting, growling, etc etc

It is I, Nyatsushi Anon, back again because the power of tiger kitty Atsushi is something I don't get to talk about. Anyways, now that I've said my bit on Tiger Atsushi, here's another Nyatsushi Concept- Imagine him grooming the people around him!!! Like, Kyōka rolls out of bed and he, without thinking, tries to "groom" her hair into neatness. Someone has a smudge of dirt on their cheek and he licks it off of them without noticing. Bonus points if he's got a rough tongue!!!

OWOWOWOWO HE GROOMSS!!! okay but kyouka would definitely suddenly start showing up with different hairstyles or naomi and yosani are like “yo how come ur hairs so neat drop the tutorial” and kyouka is like “atsushi. i dont know what he does” and atsushis just like :DDD so he becomes a makeshit hair salon for the Ladies . they love him

and ohoho!! lickin shit off. he wont think it’s a big deal but when dazai returns it and does the same to him he jerks back in shock and is like O-O cause he does N O T expect that (just like how cats dont expect it when u do the same mannerisms as them AGEJEHJSKDS)

Does Acchan know of the cookie monster? I feel like he would enjoy the cookie monster or see him as a rival

Baby Acchan LOVES the muppets. They're bright and colorful and soft and fun!

He also immediately goes into stalking behavior anytime Big Bird is on the screen, and Atsushi's had to replace the television twice.

Headcanon that the tiger causes Atsushi to consume more calories/energy doing literally than normal people so his coworkers are always making sure he’s eating enough (especially difficult because growing up in the orphanage taught him to not eat a lot)

Anyone who allies with the agency has to go through the Atsushi test.

....

Ango: I know you have your worries and concerns on whether you can trust me or not. But I can assure that I-

Atsushi: walks up to him, lightly headbutts his shoulder.

Ango: realises he's being accepted, emotional... Thank you.

....

Fitzgerald: How did you know you could trust me?

Dazai: looks at Atsushi

Atsushi: curled up on the same sofa as Fitzgerald, taking a nap

Dazai: Oh just a hunch.

.....

Atsushi: slowly blinking at Sigma

Sigma: concerned Is he okay?

Kyouka: gets the signal, puts her weapon down It means your family now.

Sigma: emotional thank you tries doing it back to Atsushi.

Atsushi: tears up.

...

Ranpo realising he fucked up going to that meeting with Fukuchi without glasses and alone.

Because the moment Atsushi sees Fukuchi, he's infront of Ranpo hissing with his claws out.

....

Poe: Are you sure it's alright for me to be here?

Ranpo: already knows but looks at Atsushi.

Atsushi: smiles and waves at Poe from his desk.

Ranpo: Yup.

....

Tachihara realising that Atsushi was never hostile to him. And realising yup yeah I'm on the agencies side.

....

If Atsushi doesn't trust you than you are bad news.