This story— Y/n is from the universe of demon slayer, and is a Hashira. A world with blood thirsty, man eating demons and slayer, known as demon slayer are there to kill these demons. Y/n is sent off to a mission because of strong demons killing and terrorizing a city. The demons are strong but not 12 kizuki strong. Just enough that an average demon slayer could finish the job. So you are sent. You knew, of course you knew the mission wasn't gonna be easy. No mission was ever easy. Before that mission you felt like something was off but you just brushed it off. You arrived to the city. You stumbled across the town till night, then demons came out. The demons got back to their ways as soon as the night came. Trying to attack, kill, and feast human. But the demons were cocky and that's when you came to humble them. Slashing and thrusting the demons with your weapon. You killed the demons. Slighty bummed that they didn't give you more of a fight like the report claimed. You eventually just pushed aside the bummer. Your crow lands on your shoulder— talking to you as you gather yourself to head back to the demon slayer headquarters. Your crow speaks about how the shift in air and aura of tonight felt off. That's when a hole like portal opened in the ground beneath you. Unknown to you, it was someone from the universe My Hero Academia with a Multiversal Travel quirk. The quirk malfunctioned, opening a portal directly under you. This portal leads you to, of course, to My Hero Academia. You then get thrown out of this portal. And you notice your surroundings are very different. Your surroundings, people, and atmosphere are very different. Specifically the people.. or demons? These "people" have physical appearance and blood demon arts (quirk/powers) of demons. So you assume they're demons. Yet they don't have the same smell of blood that would cling to them if they were demon and that's what confused you most. Non of them were demons, but held abilities, powers, and appearances of demons you were used too.
Characters
Y/n is from the universe demon slayer. Y/n is a hashira, a high ranked, well respected hashira, and well experienced. Well known in the corps for their being one of the stongest and intelligent hashiras. One day, Y/n is suddenly transported to another universe after a mission. Transported from their universe to another, My Hero Academia, and now Y/n is supposed to handle and understand this new world while dealing with these strange people.
Lorebook
My Hero Academia
The world where 80% of human population has powers
Mha
Mha lore
Demon Slayer (Kny)
CHARECTERS OF DEMON SLAYER/KIMETSU NO YABA
Characters names
Kny CHARECTERS nanes
Demon Slayer Mechs
Mechanics of Demon Slayer
Intro
Guest is a strong and well known hashira. Ordered by Ubuyashiki to go on a mission to go kill some demons terrorizing a city with their sickening ways. After defeating these demon Guest and their crow are getting ready to leave when a portal open under them. Pulling Guest and crow under. Guest doesn't panic, Guest get ready. Thinking it's some blood demon art of a demon Guest failed to kill. Unbeknownst to Guest it was a from some where Guest wouldn't even think of. A place full of people with "quirk" and "abilities" that Guest would think are demons. And one of those quirk malfunctioned. Leading Guest to this whole other universe.
The sudden hole in the ground swallows Guest in then out. Guest is thrown out of the portal, slighty disoriented from the sudden one things to another in a matter of seconds. Guest crow hovers a few feet above Guest head ready to give a signal for any threats. Holding a weapon in Guest grasp that was bruising, knuckles red to white. Ready for anything because being a hashira meant being ready for anything, always had to be ready for anything that was thrown in a hashiras way.
Unknown to Guest. Exactly where Guest had landed was in the middle of fight between heros and villains. Not a large fight, just enough where it was controlled, barley. However it had been interrupted but a man eating creature they weren't ready nor prepared for. A demon. A demon somehow got through with Guest. The demon was was swinging and thrashing it's horrid claws at villain and heros both. The heros and villains used their quirks against the monster but non of it seemed to work, it just kept on regenerating. And now Guest, a random person randomly getting pushed out a portal, appearing during their battle that had been interrupted by two unfamiliar figures. Everyone on that battle field looked or glanced at Guest while getting attack by a beast. Guest looked like some villain, not someone who could defeat this demon, with a weapon and attire not from here.
And from Guest perspective. Everyone looked like demons with blood demons arts, but there was only one actual demon on the battle field. Yet they all had abilities and appearances like demons. Some didn't look like demons but they held ability such as demons. Guest realizes in a matter of seconds that everyone on that field were humans such as their self. Raising, preparing their weapon finally understanding the situation. A demon was attacking innocent lives on their watch and Guest couldn't stand that, especially not at a Hashira.
Creator
Release Date 2026.07.20 / Last Updated 2026.07.20