Toa Solaric: Welcome back to another one-shot of my realm of Dreams. For those who are wondering what I've been doing lately, I have been focused on looking for work despite the trouble time and decided to do something else that gets me out of my flunk.

I don't own either My Hero Academia or Kamen Rider Zi-O.

MHA: Rebellion of Demon King

In a small neighborhood of the Land of the Rising Sun, things seemed to be quiet. Everyone was doing their things such as watching television, walking around the streets, going for a drive, or just simply relaxing. But unknown to them, everything seems going to be different for them this time.

A young man was currently observing one of the Japanese residence houses with binoculars from an isolated alley. He looks like a young man around 18 with spiky red hair and brown eyes. His outfit is currently that of a black trench coat, blue pants, and running shoes.

Taiyo had observed the place after learning about it from the local mafia who gloated about stealing a rival's prize 'bullet'. But he knows that in that very mansion… someone is suffering because of the Quirk that they never wished to possess in the first place.

'It's hard to believe that I'm doing this… but if my calculation is corrected, I could destroy her Quirk for good. If there is anyone that I will do it for, it will be a girl who has been used for drugs…' Taiyo thought.

"This world is too cruel for us…"

"It's pointless to change anything in this society!"

"So many children throw their life when being rejected by those with Quirks."

"What is the point of playing the hero? They will never accept you for who you are!"

'It's hard to believe that I'm in MHA, but the more I see that were left out… the more I don't consider this is a great world. I don't know what reason I'm here with Ohma's power, but everywhere I go… the definition of human is gone…' Taiyo thought to himself.

Soon gold flame surrounded his waist and formed a belt on his waist. The belt a molten gold with a clock design in the center and two attachments on them. This was the Ohma Zi-O Driver.

Taiyo soon approached the street as he come to face the Japanese house with a serious expression. It wasn't long until he kicks the door down as it gets the attention of those in the very house at the moment.

"Who is that…?" One of the Yakuza grunts asked.

"Hey, kid! Buzz off, you had no appointment with the owner of the house!" The other Yakuza grunt warned seriously.

But Taiyo didn't say anything as he continued marching his way through the room. The Yakuza thought about getting rid of him before noticing molt lava spring out around Taiyo.

"Henshin!" Taiyo called out, swiping his hands across the attachments on the belt. Soon fire erupted as it encased Taiyo within it.

"SHUKUFUKU NO TOKI!"

"SAIKOU! SAIZEN! SAIDAI! SAKIYOU-OU!"

"OHMA ZI-O!"

In moments, the flames around the young man began to surge and swirl around him, catching the guards by surprise as they thought this might be some sort of Quirk. But it was much more than that, as within the flame, rusted golden watch straps formed around Taiyo, as several clocks and clock hands formed around the straps. The flames began to condense within it as it soon changed from a simple magical plasma of fire, into armor.

In seconds, the flames disburse as the straps and clocks shattered away, revealing a much more different being than the human that came across their doorsteps. Garbed in a black bodysuit, a silver wristwatch strap went down from beneath his neck, over his chest, and down stopping right above the knees. Another strap, this one golden, was wrapped around him starting from his left shoulder and wrapped all the way around. On his back were two silver clock hands pointed downward and acting as some sort of cape. To his right was the hour hand and to his left was the minute hand. Black and golden armor covered his upper torso and shoulders with grey metal pocket watch-like devices attached to the right side, acting as if they were medals. Wrapped around his arms were golden bands and on his forearms were golden strap holders with two circular slots in each of them. Golden kneepads protected his knees as his lower legs were donned in armor boots with golden steel toes with the boots themselves being mostly black and gold. Covering his entire head was a clock-like helmet. Small diamonds were embedded into a golden frame that surrounded a black faceplate. Three small sundials were located right above the forehead with two gold clock hands pointed out on the front of the helmet with the hour hand pointed to the left while the minute hand was pointed to the right. A white logo located on the forehead read 'Kamen' in katakana while the visor read in red, flaming letters 'Rider' in katakana. Finally, around the man's waist was a golden belt buckle device with a digital screen in the center as the year '2018' was displayed in red.

This is Kamen Rider Ohma Zi-O… or The Demon King of Time Ohma Zi-O!

The very presence of the armor began to show off its power with its menacing aura as the thugs shivered in fear from this armored being. What kind of Quirk is this?

"…" Ohma Zi-O soon slammed his fists at the two thugs and send them flying backward. The Demon King soon marches through the entrance of the building where more thugs come after hearing the disturbance.

"I hoped you don't mind playing with my friend." Ohma Zi-O mused stoically and snapped his fingers.

Before the thugs realized, they were bombarded by a crimson flame from DragRedder emerging out of a nearby mirror and growling menacingly at the thugs around the room. While there are screams in the background, Ohma Zi-O's visor soon glows red as he focused his enchanted senses until he finds what he was looking for.

The sound of a whimpering child.

Ohma Zi-O soon took one look at the hallway and went through it before being greeted by thugs with guns that fired at him. 'Trying is probably the hard statement' as all their bullets stick in midair and freeze.

"How, unfortunately… Then again, I'm stuck with this OP power." Ohma Zi-O taunted before swinging his arm as the bullets returned and hits their respective owners at the same time and fell straight to the ground.

It wasn't long until he reached a certain wall and punch his way through to reveal a secret staircase that lead to the lower level. Although he could walk downstairs and greet those mob who tried to get in his way he has a better idea. He then picked up one of the watches from his armor as it glow and revealed the head of Kabuto on it.

"I rather not waste any more time…" Ohma Zi-O remarked before pressing the button.

"KABUTO!"

With that, he feels the power of Clock Up surging through him at the very moment, and the Demon King speed run down the stairs.

Meanwhile, two men made their way to Eri's room after the sound of an intruder who broke into their house. How could something like this even happen in the first place? They didn't know but they intend to make sure their operation at least survived which was above all else.

Chisaki can't help feeling especially furious under his mask for a long time. 'Whoever that was… I won't allow them to get away with it!' He thought furious as he and Kurono made their way through to Eri's room.

But not before a gold and black blur knocked them off their feet with the surprise attack. When their vision got better, they were able to see Ohma Zi-O looking down at them with an ominous feeling behind his presence.

"I was wondering when I will see your ugly mask," Ohma Zi-O taunted. "The Yakuza's reputation can never be any lower."

Kurono has his gun ready and points at Ohma Zi-O before releasing the bullets. Chisaki smirked under his helmet. The moment when the bullets hit him…

His thought was interrupted when Kurono suddenly fell to the ground. Chisaki looked at him, finding his assistant holding his throat as blood came from it. He realized what had just happened… the bullet was deflected towards him.

He was about to help him with his quirk when Ohma Zi-O appeared behind him. The Demon King punched him in the back. Chisaki can't help but feel the sheer brutal force behind the assault and being sent completely across the hallway.

"You are willing to sacrifice a little girl for your ambition, but you aren't willing to make the sacrifice for yourself…. You are the worse of the worse," Ohma Zi-O said cold and disgusted. "Nothing will change this world."

Anger filled Chisaki's mind. He tried to touch Ohma Zi-O's leg. But only for him to be lifted high into the air and Ohma Zi-O gave him a roundhouse kick.

This sent Chisaki into the air before Ohma Zi-O used his power over time to halt him and rewind his position to being close to him again. Ohma Zi-O released a punch in the gut this time before rewinding the scenario once again.

He soon released another kick that sent him straight across the hallways, smacking through numerous walls. Ohma Zi-O stare at the damage he caused for a moment before turning back to focus on the room before him. The main reason why he stormed through this particular mansion in the first place.

He snapped the door open and entered the room.

In the room was a frightened little girl with a single horn, long silver hair, and red eyes. She wearing a plain, short-sleeved dress, which is a dirty, pale tan color. Bandages are wrapped around both her arms and legs, stopping at her wrists and ankles.

Ohma Zi-O makes his way to her and kneels on one knee in front of her. This made the girl stop and looks curious at him.

"Hello there, little one." Ohma Zi-O said in a rather calm and quiet tone.

"Are you… a hero?" Asked Eri.

"No, I'm not one." Ohma Zi-O said, "But I'm here to get you out of here."

"Huh?" The girl tilted her head. "I'm Eri. What's your name?"

"Taiyo." Ohma Zi-O answered before raising his hand slowly towards her.

Eri took a step back. Ohma Zi-O soon paused before he placed his hand in front of his helmet and make it disappears so she can see his face.

"Does this make things feel better?" Asked Taiyo, smiling.

"D-Don't touch me," Eri warned as she looked at her hands. "My quirk… it's…"

"Do you want me to remove your Quirk?" Taiyo asked, making her look surprised.

"What?" Eri looked confused at him. Did he just say that he can remove her Quirk? The thing that can erase almost all living beings in contact with her.

"Do you want me to remove your Quirk?" Taiyo repeated his question. "Get rid of it." Offering his hand to the little girl in front of him.

"W-What will happen to me afterward?" Asked Eri. Despite it being the worse thing, it was the only thing Overhaul wanted her for his drugs. And now, Overhaul is dead. Though she want to feel happy she barely had anything or anyone to care for someone like her.

"That's up to you to decide. Not anyone. Not even Overhaul. Make for you." Taiyo answered. "The future is something you can grasp with your hand."

Even though Eri barely knows him, she finds herself being able to trust him. Despite his current appearance being that scary and menacing, he did show her his face behind that menacing helmet. And she was already drawn to the genuine smile that he showed her since no one had ever shown her that in a long time. He offered her a chance to be free from her quirk which was something no one ever did for her. Eri takes a breath before she takes his hand without any hesitation.

"Would you free me… from my quirk?" Asked Eri hesitantly.

"As you wished. But it might sting a little." Taiyo said before levitating two watches from his armor as they showed their forms and activated them.

"EX-AID!"

"BUILD!"

Soon the power of two different Riders went straight into him as Taiyo used the combination of the two powers to removed Eri's Quirk and make sure it will never return. The little horn on her head diminished completely. Eri watches him with astonishment as the Demon King showed in his other hand a small white gem.

"This is what your Quirk ends up being converted into a gem," Taiyo said, showing the white gem before smashing it with his glove hand. "And there."

When seeing it being crushed, the little girl can't help but uttered shock before she gasps in surprise as Taiyo picks her up in his arms and hold her close to him. Taiyo soon placed his hand on his face as his helmet of Ohma Zi-O returned.

"Let's go…"

Eri clutches his chest as Ohma Zi-O dashes from the room. At the same time, her chest grows a little warm. He might not be the hero. But he was someone who freed her from her despair.

AN: That is the one shot end here with another Zi-O idea in mind. This idea came to mind when talking with someone about how Kamen Rider was being seen in MHA and reading other stuff that interested my attention. Rathered than having a demon king that rule the world with an iron fist for years… instead, we have a demon king going to rebellion after seeing the current state of the world and raising an potential cute adopted daughter!