Author's Note:

This is the first fic I worked on a few months ago. My original idea was to cast the MHA characters as their DC counterparts and make a story from there. But that idea evolved to this, which is a Batman and Superman isekai story. The outline is still a working progress, because there some neat ideas that I want to explore further, but I don't have time because of college and I got distracted by another fic I'm working on LMAO

So I hope you'll like this first chapter.

*Updated chapter as of November 20, 2023. Because of grammatical errors.

Chapter 1: Rebirth

Clark flew out of the atmosphere as fast as he could. He could feel the solar radiation coursing through his body. His skin was forming cracks of light, ready to burst out of his body. It was painful, but Clark had to bear it. He could see the powerless sun in front of him, glowing a blue light across the solar system. If he didn't make it, Earth would be in danger. Everything would be in danger. Everything he loved would be gone. His mother, Smallville, Krypto, his friends, Metropolis, and... Lois.

If only he had more time. Enough time to tell her how much he loved her, how she changed him, how she made him feel accepted in the world. Maybe a chance to settle down, get married, have a family. If only he could convince her that Clark Kent and Superman are one and the same. Try to make her understand that Clark Kent is who he really is, and Superman is the ideal of what he can become.

If only he had enough time on Earth, his home. To fly around it and see the beauty of it for one last time. Clark looked back, seeing the planet he grew up in and loved slowly going farther away from him. Clark looked back at the weakening sun. The thought of leaving his home was more painful than the solar energy trying to burst out of him.

Clark increased his speed. Feeling the solar energy within him flowing out of his body. He couldn't let the world die. He had to save it... for one last time.

He quickly passed by Venus, and then Mercury. Clark closed his eyes. He could feel the blue rays of the sun. Clark flew into the sun, releasing the energy within him, exploding out of his body. The blue light quickly transformed into yellow and orange, and then brightness. Even though his eyes were closed, the brightness overwhelmed him. Clark felt numb. Maybe his body exploded into pieces. He didn't know. What mattered was that he saved the world. He tried everything he could to give back, to help as much as he could in a short amount of time. Clark hoped that he would inspire them to do the same, to share the gifts that he had given them. That's all he could ask for.

Clark's vision slowly became darker. This was it. For the first time, Clark felt at peace. Accomplished even. He hoped he would meet his Pa again. Clark didn't believe in the afterlife, but he was willing to meet his father again or perhaps his biological parents. His vision faded into darkness.

"I wondered when you would show yourself," the booming voice echoed throughout the laboratory. "Stop skulking in the shadows."

Batman was hiding by the doorway, formulating a plan to take down the new god by surprise. With his cover now blown, he had no choice but to confront him head-on.

As Batman entered the laboratory, he saw Darkseid, the unstoppable force of hatred and symbol of all evil, sitting on a chair as if it were his throne. Dead scientists lay sprawled around the room. He didn't know what their cause of death was, but that was irrelevant to his current situation; he was facing a god right before him. Slowly, Batman approached Darkseid, taking every cautious step toward him.

"Accept that the equation is proven," Darkseid said. "Come out. Embrace the anti-life and be whole."

"Darkseid. You look like I feel," Batman started. "You shouldn't have shot Orion."

He has to prolong this. Trying to catch him off guard and seize the opportunity when the time is right.

"It was Orion's destiny to fall in 'Final Battle'," Darkseid said, both of his arms raised in a preaching manner. "Splintered like light through a prism in an infinite number of deaths."

"And on the way he wounded you, beyond repair, didn't he?" Batman said.

The scars were evident on his gray body. The leg braces. The life monitors near where he was sitting.

"A rotten carcass of a god," Batman sneered. "Crawling into the sewers to die."

Batman grasped the weapon tightly in his hand. He had retrieved it from Apokalips, where he was transported by Granny Goodness to be tortured and cloned. However, the cloning process was unsuccessful; the clones could not handle his memories and he escaped the literal hellhole. Unlike his colleagues, he was powerless as a mere mortal, but Batman always has something up his sleeve no matter the situation. This was a difficult decision for him, but it was the only way to stop this madness.

"I made a very solemn vow about firearms," Batman said. He pointed the gun at Darkseid. "But for you, I'm making a once-in-a lifetime exception," Batman placed his finger right at the trigger. "A gun and a bullet, Darkseid. It was your idea."

Darkseid raised a brow. As if he's waiting for Batman to explain what he means.

"Radion," Batman continued. "Toxic to your kind. I sealed the bullet that killed Orion in my belt for inspection."

Darkseid opened his mouth.

"But-"

"Do I make myself clear?!" Batman shouted insistently.

Batman could see Darkseid's expression change. He was seething. His eyes started to glow a menacing violet color - very different from his normal red Omega Beams.

"Little man," Darkseid said in laced anger. "Can you outrace the omega sanction? The death that is life!"

"Try me," Batman said, as he pulled the trigger.

He felt the vibration of the recoil. It was a horrible feeling. Not that it was his first time firing the gun. It was the very weapon that killed his parents. The power. The destructiveness. A weapon that could take someone's life with a holder who had the intent to kill. But Batman did not have those intentions. The bullet hit Darkseid's chest. He made sure it was far away from his heart. He only needed to wound him, making him weaker than before.

In Darkseid's retaliation, he shot the omega beams out of his eyes. They were gunning towards him. He was expecting them to hit him right then and there. But the beams passed him by. He didn't get his hopes up. He knew how the omega beams worked. The target was set. As if time slowed down for a moment. It was a familiar feeling for him. He had defied death multiple times, but he wouldn't escape this time.

Time. If only he had more time. Time to fight alongside his friends. Time to see his family, his sons. Telling them how proud he is. Time to say goodbye to Alfred, his trusted butler and father figure.

Batman watched as Darkseid let out loud, painful grunts as he tried to clutch the bullet wound on his chest. Batman dropped the weapon from his hand and let out a satisfied grunt. He turned to face the incoming omega beam behind him, smiling.

"Gotcha."

Then the omega beams hit him.

Clark blinked a few times, trying to adjust his eyes to the brightness. When Clark looked around, he could only see blurred colors. Suddenly, he could feel that he was being moved, as if he were being carried by large hands. Clark could hear muffled voices. His hearing became clearer in each second.

"Congratulations, Midoriya-san," a voice of a man said.

Clark realized that the people were speaking Japanese. When he first introduced himself to the world as Superman, he made sure to learn to speak all the languages from around the world to connect with the people of Earth.

"Can I see my baby?" another voice said weakly.

Clark could tell that it was coming from a woman. He felt that he was being carried away and another set of large hands wrapping around him. He felt himself being cradled. His vision hadn't cleared up yet, but he could see a silhouette of the woman with long dark green hair.

Slowly, Clark began to see clearly. He could see the woman cradling him. She had fair skin, a round face, and straight dark green hair. Clark could tell that she had very round eyes, but he could also tell that she was tired from the eye bags that formed below her lower eyelids. She had bright green irises staring back at Clark, filled with care and love.

"Hello, Izuku," the woman said.

Clark realized that he was the baby, and he was her son. He looked down and saw his tiny hands, his arms, his feet, his entire body. It felt like a surreal dream for him, but he knew it was real. He had been reincarnated. That was the only explanation he could think of.

"Hello there, little one," Clark heard a deeper voice. It came from a man.

Clark looked up and saw a man with dark curly hair and four freckles on each side of his face in a diamond formation. The man also looked tired, but he was delighted to see Clark. His face lit up.

"You got your mother's eyes!" the man exclaimed.

"He got your freckles," the woman looked at her husband.

She looked back at Clark.

"You're not much of a crier are you?" she said with a hint of concern in her tone.

"Now that you mention it, he didn't cry at all when he came out," Clark's father looked at him with a worried expression.

He looked up, apparently toward the doctor.

"Should we be worried about this?"

"To tell you the truth, it is odd that your baby didn't cry," the doctor explained. "But he looks healthy and active."

Clark let out a surprised hum, but instead of saying "huh," he let out a sound that resembled a squeaky cry. His mother quickly looked at him with a concerned expression.

"Are you hungry, Izuku?" the woman asked.

Clark tried to refuse, but all that came out of his mouth were whiny baby noises.

"It looks like your baby's hungry," the doctor commented. "Well, I leave you to it then. The nurse will assist you in your feeding."

Clark heard the door being opened and then closed.

"Alright, Izuku," his mother started. "Mommy will feed you now."

The woman began to unbutton her hospital gown. Clark let out a panicked whine. The woman tried to calm him down with a gentle hush.

"It's okay, honey," she said as she placed Clark's face right at her left breast.

Clark never wished to be dead again, until now.

Bruce had been lying in his crib for the past hour. Looking up at the giant clock hanging over him (for his size), he noticed it was 7:43 in the morning. He turned his head toward the left, through the bars of the crib, and saw his parents, Hajime and Mihoko Shinso, sound asleep. They had named him Hitoshi.

It has been two weeks since he was born into this world, and within that span, he has managed to gather some small pieces of information about it so far. Hajime, his father, works at the hospital where he was born. He was a neurologist and seemed to be good at his job. Bruce also discovered that Hajime is an insomniac which was evident through his eye bags. Mihoko, his mother, used to work as a barista. Judging by the way she makes coffee, the aroma that filled the room, and Hajime's comments on her making the best coffee in the world.

Bruce heard someone stirring from his parents' bed. He looked over at them and they were still fast asleep. Bruce couldn't grasp it. The idea of having parents. Up until now he still didn't know what to feel about it. They are good people, the most caring even. But he can't forget his parents. He can't forget about Crime Alley. He can't forget the two gunshots. His mother's pearls were everywhere. Their blood staining the alley.

Bruce noticed someone stirring up from the corner of his eye. Mihoko had just woken up. Her straight, lavender hair was slightly messy from her sleep. She sat up and blinked a few times. Her violet eyes glanced towards him, and she gave him a tired smile.

"Good morning, Hitoshi," Mihoko said in a hush tone.

She got up from the bed as gently as she could, causing Hajime to stir a bit. She silently walked towards his crib.

"How long have you been awake?"

Mihoko carried him out of the crib.

"You're more of a silent type, aren't you?"

She placed a kiss on his forehead.

"Don't worry, Mommy is here for you."

She pulled him closer. Her chin rested above Bruce's forehead. She hummed a sweet melody of a lullaby. He would listen to this every time she put him to sleep. Bruce doesn't know how to feel about this. He knew that Mihoko wasn't his mother, but the love and care she gave him? It was… welcomed.

Author's Note:

So that is all! I hope you enjoyed it. Please leave a comment and let me know how can I improve my writing.