Author note:

Before we begin, I would like to clarify some things. First, DIO arrived a month before the start of season 1. Second, DIO will be OP I mean, the only people who have a chance of defeating him are All Might, All For One, Nomu, Overhaul, Plus Ultra Shigaraki, and Gigantomachia. And third, new chapters should come every week if I am not busy with school.

Chapter 2: The sun is a deadly laser, not anymore there's a mask

The next day, DIO was woken up from his sleep by someone shouting at his door.

''Hey, Dai, time's up. Come out and give us the money you owe us, or we'll no longer 'protect' you.'' shouted the man while knocking at the door.

'Hmm. So that's why that bastard tried robbing me. Hm. I could use this to my advantage.' thought DIO while going towards the living room while his stand opened the door.

''Hey, stop hiding and come-Urkk ?!'' said the man starting to knock harder than before when suddenly it opened, making him lose his balance.

'Huh? There is no one here? Who opened the door then?... It doesn't matter. I need to find that asshole Dai and make him give me the money.'

The man entered the living room where he saw a strange-looking person.

''Hey. Do you know where Dai is hiding?'' asked the man, thinking DIO was a friend of his.

''Yes.'' said DIO while pointing behind the couch.

''Hm. Oi, Dai, stop hiding it's over your friend ratted you out.''

The man waited for Dai to come out but, after a few seconds, nothing happened. He went to the couch and said:

''Hey, come out already-?!'' the man stopped talking when he saw Dai's corpse on the ground without its head, his clothes soaked in blood, and bits and pieces of bone and brain matter near it.

The man took a step back, then covered his mouth to stop himself from vomiting.

After he regained control of his stomach again, he slowly turned his head, looking at DIO with eyes full of terror.

''D-did y-you do this?''

''Yes, I did.'' said DIO, his voice smooth and charismatic like talking to a friend, not saying he killed someone in cold blood.

The man could only say one thing in front of such disregard for life:

''Why?''

''He annoyed me.'' said DIO.

'T-this guy's crazy. W-what kind of man kills people because they annoy him. I must get out of here.'

The man tried running, only to suddenly find himself sitting on the couch in front of DIO.

'W-what?! How did I get here?! Wait, it must be that man's quirk; he must have a teleportation quirk.' thought the man, not bothering to run anymore, knowing it was useless.

''I am DIO could, you tell me your name.'' said DIO' still smiling at him.

''H-hachiro Hario.''

'I must be patient and wait for an opportunity where he drops his guard, and at that moment, I will kill him with my quirk Bullet Fingers.'

''Hachiro, can I request you to do something for me.''

''Sure, what do you want?'' asked Hachiro, not wanting to anger DIO.

''I would like for you to show me your quirk.''

'This is my chance.'

''Okay, if you want to see it, then here it is!'' shouted Hachiro while firing two bullets from his finger.

The bullets soared through the air at supersonic speed towards DIO's head when suddenly they stopped in midair.

''H-huh?!'' yelled Hachiro, utterly dumbfounded by what happened.

'How did he do that ?! Teleportation and stopping bullets, what kind of quirk can do both ?!'' cried Hachiro inside his head.

Hachiro then looked at DIO, who was unfazed by his attack and just stood there smiling at him, as if he knew from the begging what he was going to do.

Hachiro started firing bullets like crazy, but these weren't stopped in midair but bounced off him.

''H-hiiii ?!'' Hachiro shrieked when he saw that.

'This guy's bulletproof now?! What can't he do, shoot lasers?!'

Hachiro continued his assault while DIO slowly rose from the couch, a menacing aura quickly surrounding him as he slowly started approaching him.

Hachiro could only keep firing at him, too terrified to move.

Suddenly, something unexpected happened one of his bullets entered DIO's head.

Hachiro almost couldn't believe it. He did it; he killed that bastard, but his happiness turned into despair when he saw DIO continue walking towards him as if nothing was wrong with him.

'W-what?! This guy isn't human no quirk can do all this stuff?!'

Hachiro started running, he knew it was useless, but he couldn't stop himself. He found himself in the same spot again, but he didn't care; he continued running again and again until something stopped him from moving. It was The World keeping him still for DIO to implant one of his flesh buds in him. Hachiro started screaming when he saw that tentacle go towards his, trying to escape, but it was useless.

A few minutes later, Hachiro exited the house, but now he was under DIO's control.

'Lord DIO gave me an important mission; I must not disappoint him.' thought Hachiro while carrying a folder with a drawing of an arrow he needed to find.

A week later

DIO was starting to lose hope. He sent Hachiro to look for the arrow on the black market while he searched the internet for it, but after a week of looking, neither of them found any leads.

He was ready to give up searching for the rest of the day when suddenly an article caught his attention. It was about a stone mask found in some Aztec ruins. He clicked on it, and when he saw the photograph of it, he was sure it was the one he had a century ago. The mask had a bit of a different design, most notably the red stone on its forehead, but it was the same. After he read through the article DIO that the mask was in a museum in Tokyo.

Later that day, DIO was standing near the museum, waiting for it to close up.

'While I wait, I should think about how I will take the mask. I could stop time and steal it, but I must learn to use my other abilities more; instead of being so reliant on it. In my battle in Egypt, I had the advantage because of my power, but once Jotaro discovered that he could stop time as well, I was the one at a disadvantage, so to learn from my mistakes, I will only stop time as a last resort in battle' thought DIO.

After thirty minutes, the museum closed its doors, and DIO made his move.

He used to break The World to break the doorknob. Then he started walking until he saw a camera, so he hid behind a pillar.

'I mustn't be on camera, so how do I do it. Hm. I haven't used this ability since my fight with Jonathan on that ship since it was useless against stands, but now it will do nicely' thought DIO while turning his head to look at the camera. Then he used the Space Ripper Stingy Eyes to destroy the camera, repeating the process every time he saw another one.

After passing through multiple rooms, he finally reached the Aztec region of the museum. He entered it and started looking around a bit until he found it.

He took the mask and put it on his face.

'Now all I need is blood.' thought DIO.

Suddenly he heard someone behind him shout:

''Don't move.''

DIO turned around and saw a guard pointing a taser gun and flashlight at him.

'It seems that-?!'

DIO didn't have time to finish that thought because the red stone started shining, and spikes entered his brain.

His body fell to the ground and remained there unmoving for a few seconds.

''I-is he dead?'' asked the guard.

After he uttered those words, DIO disappeared, and the guard was missing his head.

DIO appeared on the rooftop of a building near the museum with the mask in his hand.

'After the spikes entered my head, I felt information entering my brain, I don't know how, but the mask made me immune to sunlight.'

''After a century of hiding in the shadows, the mighty DIO can finally step back into the light.''

DIO then threw the mask in the air and used The World to break it.

''Only I, DIO, should possess the ability to walk in the daylight,'' said DIO while posing.

He was about to go back home, but he heard someone saying something that caught his attention.

''I will purge all fake heroes.''

''Well, well, this day keeps getting more and more interesting. I have heard many things about you, Hero Killer, Stain,'' said DIO while walking towards voice.