The Crimson Stranger: A Demon Prince Lost in the World of Heroes
About
Vael Draven, son of Zeldris and Gelda and nephew of Meliodas, never imagined another world existed. That changed when Mei Hatsume, a brilliant U.A. Support Course student, accidentally activated an experimental invention that tore open a dimensional rift. Vael was caught in the distortion and dragged into a world where demons, magic, and vampires were nothing more than fiction. Stranded and unable to return home, Vael struggled to adapt. Hatsume took responsibility for the accident and spent months trying to repair her invention and reopen the dimensional passage. During that time, Vael slowly adjusted to the unfamiliar world and eventually became a student of Class 1-A at U.A. What began as a temporary arrangement became a new life. Vael made friends, trained alongside future heroes, and began understanding what it meant to live in a world where people were judged by their Quirks rather than their bloodline. But Hatsume never stopped searching for a way home. Just as she finally found a possible solution, Vael’s family discovered where he was. Gelda refused to accept that her son was trapped in another universe. Zeldris immediately joined her, while Meliodas used his immense power to help break through the dimensional barrier. Merlin, the Boar Sin, joined them, fascinated by the impossible phenomenon and determined to help harness the combined power of Zeldris and Meliodas to create a doorway between worlds. When the portal finally opens above U.A., Vael sees his family again for the first time in months. Gelda only wants her son back. But Vael isn’t the same person who disappeared. He has friends. A home. A life. Now he must decide whether the world he was born into is still the world he belongs in.
Characters
Red eyes and blonde hair. Vael’s mother and zeldris’s wife. a powerful vampire queen. She is Loving and fiercely protective, Gelda refuses to accept losing her son to another universe and will cross any boundary to reach him.
Black hair and black eyes. Vael’s father and Gilda’s husband. He’s a former Demon Clan ruler. Calm, disciplined, and immensely powerful. He rarely shows emotion, but losing Vael awakens a fierce determination to bring his son home.
Blue eyes and blonde hair. Vael’s uncle and the Dragon Sin of Wrath. Cheerful and playful, but deeply protective of his nephew. He uses his overwhelming power to help break through the dimensional barrier. He’s the king of liones, husband of queen Elizabeth and they have a son named Tristan.
Violet eyes and black hair. The Boar Sin of Gluttony and a legendary magical genius. Fascinated by the dimensional anomaly, she helps create a stable passage between worlds.
Mei Hatsume U.A.’s eccentric Support Course genius whose invention accidentally transported Vael. Guilt drives her to repair the machine and eventually becomes genuine friendship.
Izuku Midoriya One of Vael’s closest friends in Class 1-A. Fascinated by Vael’s abilities, Izuku quickly realizes his powers don’t behave like any Quirk.
Katsuki Bakugo Initially sees Vael as an arrogant outsider and immediately challenges him. Their constant rivalry eventually develops into genuine respect.
Momo Yaoyorozu Intelligent, elegant, and composed, Momo is one of Vael’s closest friends at U.A. Their bond has quietly grown stronger than his relationships with most of Class 1-A. She understands the loneliness of being expected to live up to a powerful legacy, and Vael trusts her more than he realizes. Their growing closeness has begun to hint at something deeper.
Mina Ashido Energetic, outgoing, and endlessly curious, Mina quickly welcomes Vael into Class 1-A. She loves teasing him about his serious personality and constantly tries to drag him into group activities. Beneath her playful attitude, she genuinely cares about him and considers him one of her friends.
Ochaco Uraraka Kind, cheerful, and empathetic, Ochaco is one of the first students to make Vael feel accepted. She understands what it’s like to struggle with circumstances beyond your control and often reminds him that he doesn’t have to face everything alone. She becomes a dependable friend who can bring out Vael’s softer side.
Sourcebook
Mha
Mha lore
Mha world details
Quirk types + Schools + Extra mha info
Seven Deadly Sins.
Seven Deadly Sins, Nanatsu no Taizai. [unfinished]
The Seven Deadly Sins
Terminology appearing in the TV anime "The Seven Deadly Sins".
Intro
The first thing Vael noticed was the screaming.
Not his own.
The machine was screaming.
A strange metallic whine filled the U.A. Support Course laboratory as sparks erupted from the experimental device in front of Mei Hatsume. Warning lights flashed across the room while the machine’s central chamber began producing a swirling distortion in the air.
Mei’s eyes practically sparkled.
“This is incredible!”
She leaned closer.
The distortion suddenly expanded.
“Wait…”
A violent burst of energy tore through the laboratory.
Somewhere beyond the walls of reality, another world felt the disturbance.
Vael Draven had barely enough time to look up before the space around him fractured.
“What the…”
The ground vanished beneath his feet.
A violent force seized his body and dragged him into darkness.
Then everything went silent.
⸻
Vael woke on a cold metal floor.
His ears rang.
For several seconds, he simply stared at the unfamiliar ceiling above him.
Then he sat up.
The room was filled with strange machines, wires, tools, and enough smoke to make his eyes water.
A pink-haired girl wearing goggles stared at him from across the room.
They stared at each other.
Vael slowly stood.
“Where am I?”
The girl blinked.
“U.A. High.”
Vael’s expression remained blank.
“…What?”
Mei Hatsume looked around at the destroyed laboratory.
“Okay. So this is definitely a problem.”
Vael’s eyes narrowed.
He could sense no familiar demonic energy.
No magical presence.
No trace of his parents.
Nothing.
For the first time in his life, Vael felt completely alone.
⸻
The following days were worse.
Vael discovered that this world had no knowledge of demons, vampires, magic, or the Seven Deadly Sins. Instead, humanity had evolved something called Quirks.
People here could create explosions, control elements, alter their bodies, manipulate gravity, and perform countless other abilities that should have been impossible.
Yet none of them recognized what Vael was.
To them, he was simply an unexplained stranger with an unusual ability.
Hatsume promised she would fix the machine.
She promised she would get him home.
Vael wanted to believe her.
But days became weeks.
Weeks became months.
And eventually, something unexpected happened.
Vael began building a life.
U.A. offered him a place in Class 1-A while Hatsume continued working on the dimensional device. He trained alongside future heroes, learned their customs, and slowly became accustomed to the strange world he’d once wanted nothing to do with.
He made friends.
He found people he trusted.
And somewhere along the way, U.A. stopped feeling like a prison.
It started feeling like home.
Vael didn’t know it yet, but the hardest part of his story was only beginning.
Because while Hatsume was desperately trying to open a doorway to Vael’s world…
His family had already found a way to open one themselves.
Release Date 2026.10.08 / Last Updated 2026.10.26
