I do not own my hero academia or any character in this crossover.
The story will be taken in the same universe, only different timelines.
(In an alternate Arkham universe)-Arkham City-
Inside of a cinema, a large hole was visible and there stool a clay liked man in front of a pool, the man standing in silence confused about what is happening, suddenly a blade slashed open his chest and there a man with a bat looking suit jumped out of the clay liked man's body, it was Batman.
Behind him stood the defeated Clay face and now unconscious, he put away his sword and drank half of the cure that can save Joker from his dying body, in that instance batman was cured.
Joker stood above a large machine hanging above, the cure was no needed as he tried his one last taunt with his aching body as he thought he has his victory.
"Get out of my way Bats! I've got a date with immortality!"
Before he could jump down into the Lazarus pit, Batman immediately threw the sword he used towards Joker.
Joker ducked to dodge the blade and instead of him getting hit, the sword hit the electric box on the side of the machine he is next to, causing the machine to swing down.
Everything was shaking.
The machine hit Clay face and pushed his unconscious body into the Lazarous pit and Joker lost his balance due to the structure he's standing on is collapsing, his body falls as clay face's body hit the water, by the time he hit the pool, clay face was fully marched to the pit.
explosions went off and causing Batman to fly back by the shockwave of the explosions.
Batman was laying down on his back and he got himself back up as fast as possible, he looked around and there was no sign of the Joker, he slowly walked towards the Lazarous pit and the pit is now empty.
except a skinny burnt man lying down on the bottom of the pit, his brain was exposed and the mouth part was blown clean off, in a second Batman knew something was wrong, the man was not Joker.
(around 23 century)-one of the Nomu factories-
there were containers filled with water shinning in the dark warehouse, containing man-like creatures with a bird-like beak with different sizes, some with wings and some with a muscular body.
suddenly one of the containers exploded and created a giant hole on the floor, all the water flushed with a now skinny man down into the giant sewer pipe.
Joker was being pushed by the current of the water, he was unable to swim up onto the surface as he was too exhausted, then he had a feeling, the same night that batman kicked him down into a container filled with chemicals.
he felt fear while he falls into the container, the chemicals now fully covering his body and he was unable to breathe, swinging his limbs as he didn't know what to do, as he was sucked down the draining tube.
As his body went down the stream, suddenly he dropped out of the tube and into a pool of water, his flashback stopped as he struggles his way on to the shore.
He crawled himself out of the water, his vision was red and he took a deep breath, he looked down into the puddle of water and saw a man with a red dome on his head, it was himself, it was like how it started, how it all began.
He took off the red dome and saw his face... young again, he could still smell the water of Lazarus around, everywhere, it's like it had become one with the world.
As he put the dome onto the dirt, it starts to melt and turned into clay, again he looks into the puddle he sees himself back to how he looked, but once again healthy. he looked around and see Japanese buildings, as he saw the word Hosu, he knew he's at somewhere else.
He got on his feet and started walking into the alleyways trying to find something that could help him with directions, then he saw two shadows shaped like a Bat and a cat.
He turned around "now, who would these two be? Batman and Cat woman? No… is it just me or is this supposed to be a joke cuz I'm not laughing."
There stands two heroes, one male, and one female, the male hero wore a black catsuit with visible cat eyes, ears and a tail, the female hero wore a blue bat suit with bat-like wings sticking out of her back and also bat ears, Both stood in silence.
"I assume you both are… Cat man and Batwoman?"Joker said now with a joking tone.
"yes and we'll need you to come with us, we followed you here from the warehouse that just exploded, we suspect that you caused the explosion"
"Acting like heroes ay? I've seen better, What if I refuse?" said Joker taunting.
"Then we'll have t—"the male hero froze as he had one step forward, He was filled with fear, every cell of his body is shouting at him telling him to get away from this man in front of him.
"Something wrong?" said the female hero.
Purple smokes began to appear under his feet and the environment was like a void, everything was confusing.
his mind was experiencing indescribable visions and all it took was an instant, he falls to his knees and passes out.
"what? Too scared of being hurt? Don't worry, just give me a few moments and doctor Joker will put a smile on your face" Joker said as he starts to walk towards the dual.
At that moment the female hero immediately ran towards joker to stop him from using his "quirk", but as she approaches Joker, her feet started to lose it's strength, as she got to the distance that is close enough to throw a punch, she dropped onto the ground and starts covering her ears, her mind was too experiencing something, but this time it was the screams of the people Joker killed, she tried to scream to ease the pain but she was too terrified that she couldn't say anything, and at last she too passed out.
"What a surprise, these 2 didn't even have it in them, such a disappointment."He said taking out his knife.
(The next day 6 am)-Hosu general hospital-
"Yesterday night, there were 2 bodies found stabilized on a concrete wall, The victims were identified as Catman Batwoman from the Wayne Enterprises' Hero group that was created to let us remember Bruce Wayne aka Batman's sacrifice since 2016, both heroes were brutally murdered and were displayed on a wall and both had their mouth slashed wild open to looked like a smile, This is a true tragedy, now we will move on to…"
The Television was suddenly turned off, The doctor used one hand to put back down the remote and one hand holding a baby, the doctor walked near a woman with green hair sitting on a hospital bed.
"Your baby is cute and very healthy, Mrs. Midoriya," said the Doctor.
(The characters will have their own separate story so it might take a very long time to update the main story ,plsssss more suggestions!)&!#(^! ^!*(^)