I accidentally wrote a story that was similar:
A man lives alone in his apartment. He needs to return to the office for the first time in months. He arrives at the office, and quickly develops excruciating back pain. A few days pass, and he finds himself unable to work. He also starts finding strange bite marks on his neck and back.
He calls out for a few days, but eventually, he has to go back. He arrives at work and sits in his chair. He quickly feels his back pain return, but also strange movements from his chair. He stands and screams, tossing the chair. The office staff are in shock. He then uses a pen knife to cut open the back of his chair. As he does, there are multiple screams, as a large, spine-like centipede emerges from the chair.
I even did the rough draft for the comic, but never finished. Damn I need to.
I'd never heard of them, but I'm definitely checking them out. That's "The Feather Pillow", in english right, by Horacio Quiroga?
Is it the same artist? It has to be, right? There can't be two people capable of thinking up such horrors.
But see, that’s much creepier than some impossible, unknowable horror… it’s something disturbing that conceivably could happen.
Yeah... I've got a real problem with people being near me and me being unaware of them. This... I'd die of fright from the realize they were there before the blade hit anything important.
My favorite adoption of the trope is in this masterpiece
Got my attention. I've read 1.5 Banks novels in the Culture series and so far nothing living in chairs.
On an unrelated note, I thought this was a public safety broadcast about the dangers of not wearing a seatbelt.
I assume Junji Ito changed it a bit but you can read the original (translated) short story by Edogawa Ranpo here: https://pseudopod.org/2021/08/21/pseudopod-771-the-human-chair/