* Can't really focus on the next chapter. Very frustrating. So, I'm editing. Wanting to do something with this story.

* Edited: 9-10-18

* Re-posted: 9-10-18

The day was cloudy, but bright. There was a light breeze making the leaves rustle in their trees. Birds chirped to one another. It was like every other day, workers commuted. Some of them walked, enjoying the fresh air, others took the train; the familiar motion soothing. It was very peaceful actually; like any other day before. Unfortunately, it didn't take long for the peace to be shattered.

In the distance; there was a rumble, the ground shook and a plume of smoke rose into the air in the east. Before people could really react, there were balls of energy crashing into the buildings, tearing into the foundation and making them begin to crumble. Screams rent the air, people began to run. The scent of fire soon overrode that of summer.

It was only minutes after the start of the attack when families were separated. Mothers were frantic; hearts pounding faster as they called for their children. Siblings desperately trying to cling to each other; only to be torn apart by the running crowd. Many attained injuries, having fallen over crumbling rubble; some pipes now visible as the buildings around them burst into flames with a shatter of raining glass. Only one building seemed to be untouched within the chaos.

Standing tall; somewhere towards the center of the city, a black onyx building stood. It was home to the government's newest disciplinary system. They were home to a new organization boasting the work of heroes. It had been erected three years before by a man named Agoni; the billionaire becoming inspired to do so after his grandson had been saved from a monster by some passerby. The elderly man has so far; been unable to find this man, but he still looked.

In the meantime; the association had garnered the attention of many aspiring people. Some had honestly wanted to help others, some wanted to get close to the rich man. Many times before he had to turn people away; after many had claimed to be the savior. He had questioned them; even brought in his grandson on many occasions, but none had been the person. It had gotten so badly, that a year and a half in from the rise of the work force; there had been tests made, buffers from the CEO of the Hero Association.

In the Hero Association Headquarters, people were scrambling, the lights were dim and the whole building had a dark aura upon it. In one room, there stood a group of workers. Each of them were desperately trying to regain control of the situation they were suddenly plunged into. They were yelling, all trying to be heard over the other. One male, a man wearing glasses with brown hair down to his ears stood in the center of it all.

Unlike the frantic people around him; he was calm. Hazel-colored eyes intently looking over the large screen hanging above their heads. He was silently assessing the situation. The man had always been one of the more level-headed people employed by the Association. The increase of monsters and crime rise didn't seem to deter him from doing his job. That of which was to provide a sense of safety and peace to the civilians of their portion of the world.

Next to him was a taller male with messier, black hair and a bit of a scruff on his jaw. The man with the glasses held files in his hand, the light glinting off of the lens as he called attention. "We need to assess the situation, put out a warning for the threat and send heroes capable of handling the monster." He said sternly, one hand reaching up, letting his fingertips push his glasses further up on his nose. His co-worker was one who better sympathized with others. He was the more approachable of the two. The man took his job seriously; but not to a level that it seemed like there was a steel rod inside of his spine.

He showed fear; he wasn't unaware of the emotion. But he was one of the ones that always managed to keep his head on right, if only allowed a moment to breathe. The man was always able to get closer to the heroes they worked with; which worked well for him. He was less likely to snap at others if they did something he didn't like; instead, he talked them through what they did wrong and helped them fix it. Even the S-Class Heroes; some of the most narcissistic bunch of people they worked with, respected him on some level.

"Sir," one voice called; a woman with black hair sitting at a computer. "the threat level has been deemed to be Dragon." The woman's voice was grave but shaking with some fear. "Smile-Man and Lightning Max had already been called out onto the scene." The man with the stubble at his jaw shook his head gravely, "that isn't enough," his voice was deep and commanding. "send out Metal Bat. He should be able to handle the situation." The woman nodded, brown eyes alight with grim determination.

Metal Bat had been walking with his sister Zenko, when the monster came. Everything had happened so quickly, he had lost her in the crowd of people running. He searched for her desperately, his head whipping into every direction as he looked. When his phone from the Hero Association rang, he had been near his wit's end with worry. So, no one could fault him for snapping when he answered it.

A rush of anger went through him as he exhaled out of his nose. He wanted to ignore the association, the teen didn't want to go fight some monster; even if it was threat level Dragon, when his sister was missing. But Metal Bat knew that he couldn't ignore the task, not when there was a small, slim chance of finding her. Even just defeating the monster would make her safer.

Nodding to himself, Metal Bat started running for the location given from the association. It had taken ten minutes, but he knew that he was headed the right way. Carnage and debris littered the streets, and the ground shook underfoot with every explosion. In the distance, he could see a twelve-foot-tall, purple being walking his way.

A few feet in front of him, Metal Bat could barely see his sister. "Zenko!" He yelled, pushing himself to run faster, the weapon which gave him his name swinging at his hip as he did. A small weight lifted from his shoulders as he saw she was relatively unscathed. Though she was crying, Metal Bat felt a twinge of guilt at this.

"Brother!" Zenko cried, eyes red and wet, tear tracks visible on her face as she beamed. Her sweater was covered in dirt and her skirt was torn, she had a few scratches on her cheeks, and a couple of bruises on what he could see of her hands. But she was okay, Metal Bat pulled his weapon from his waist. His mouth setting into a determined, thin line as he stepped between the monster and his sister.

Metal Bat put up quite the fight, but he fell eventually. The monster had some blue blood dripping from tears on his chest, and his thigh had a nasty bruise that was barely visible. The being grinned to itself, sweat dripping from its bald head and antennae as he lifted his head again. The girl was crying again, tears falling rapidly as she looked on her brother in horror; his left eye was swollen, the right had a bit of drying blood around the edges. The teen's right cheek had swollen and bruised.

In City-Z, there was a man sitting in a dark apartment. He was watching the news when the report for the attack on City-A aired. After the video had cut out, he had murmured to himself. "Guess I'll go." Walking outside, the man was wearing a yellow bodysuit, paired with matching red boots and gloves and offset with a white cape. The sun gleamed off of his bald head.

He raised a red-leather clad fist into the air before he ran, leaving behind just the sound of rapidly distilled air, almost like a cannon. The man ran through the cities, occasionally jumping over streets and some bits of forest, not bothering to wait and find his way through. No one saw him, he moved too fast. Soon, he was in City-A.

He could hear a girl crying for her brother, black hair put up in pigtails as she tried to wipe away her tears. In front of her laid who must've been the sibling. His black and red clothes covered in dirt and bits of blood, large pompadour slightly askew from the last blow the man took from the monster. The monster was reaching for the pair in front of it, a glint in dark-colored eyes.

Before the mysterious being could reach them though, there was a whoosh, small crash and the sound of rubble being moved. Saitama moved the girl; finally having fainted from shock and fear to lean against the rubble, her brother laying next to her. The beast's eyes widened in surprise, fist closed over empty air where she previously stood.

The monster's voice rumbled, speech unfamiliar to the man. His disinterested face broke into a small smile before he turned. While he couldn't understand what the mysterious being said, he could guess. "I am a hero for fun." His voice was steady, no emotion could be told from it. His arms were crossed over his chest, muscles visible and shoulders wide even as his face reflected nothing.

The face contorted with anger, before its mouth began to move faster. The beast gestured to itself, deep purple hand hitting the chest before eyes bled from black to red. The monster's form became larger, muscles doubling in size and fangs elongating from the mouth, as thick as smaller tree branches, curving up and away from its face. Yawning slightly, Saitama spun on his heel, hand raised and curled into a fist as he felt it connect with the monster's chest.

With a rush of air, the mysterious being exploded, guts, blood and skin flying everywhere. The fangs flew off into the distance and Saitama's fist now had a bit of steam coming off. The surrounding area, though previously destroyed now had blood going into two different directions. The hero's face looked distraught, eyebrows furrowed and eyes practically white as he stared at his fist. Frustration bubbled deep in his stomach before he dropped to his knees.

"Not again, all it took was one punch. Damn it!" He yelled to the sky, fists thrown into the air. The man let himself yell for a minute more before he finally stopped; sighing quietly he stood up, turning to go home. Before he could, rubble shifted behind him; the sound of metal rubbed against concrete made him stop. A groan sounded before Saitama turned around.

The man was waking up. Teeth bloodied and mouth swollen, his eyes squinting with effort to see. "W-who are you?" Metal Bat groaned quietly. Dried blood making it near impossible to see out of his right eye, vision blurry in his left. He could see a man of red, white and yellow with a powerful build and a slight reflection near his head. Saitama stepped closer, kneeling to the ground. "Saitama." He responded, a surge of now unfamiliar emotion going through him as he looked upon the younger male.

"You need help." Saitama stated, reaching out to lift the man up. Metal Bat shook his head gingerly, arm shaking with effort as he lifted his hand, trying to wave him off. "Help my sister…help Zenko." His voice was raspy, but there was fierce protectiveness underlying in the tone. Metal Bat's eyes watered as he tried to keep them open, brown eyes just visible before he gave in, closing his eyes. Nodding slightly, Saitama reached for the girl; picking her up with ridiculous ease before setting her on his back.

He made sure she was settled in a way that she wouldn't fall off as he moved before he reached again for the male. "I'll take you to the hospital." Saitama said, ignoring the man's attempts at pushing him away. With a quiet groan, Metal Bat had given up; his chest heaving as his body throbbed from the effort, he could feel himself being lifted and shifted around before settling against a warm body. His grip was loose, but he had still managed to keep a hold of his weapon. The teen hero went to say something; his mouth moving but no sound was coming out.

Saitama shushed the man; shaking his head as he started to walk. "Don't talk." He said; the weapon the guy was holding now placed under his belt. The motion of it swinging against his leg becoming steady as he made his way through the rubble. The man walked away from the scene of destruction without looking back; seemingly leaving without a trace.

Disclaimer: I do not own One Punch Man or the characters. The Creator and Author do.

AN: I know that Metal Bat could've beaten Vaccine Man, or at the very least lasted longer. But for the sake of the story, let's say that he couldn't. If you guys remember, there was a young girl crying for her mother and father. I decided to make the girl Metal Bat's little sister. I know the Chapter is short, and I may have ended it at a weird place, but this is where I felt it was comfortable.

I do intend to make this a multi-chapter story, and I have the general idea of what I want. So, let's see how it goes. Suggestions and opinions are welcome. Just please be kind.