No one's pov

The Hero known as BigHorn (Quirk: Bull) is currently chasing a villain who robbed a convenience store. "Stop right there villain!" BigHorn screams. "Dammit, why won't this hero leave me alone?!" The Villain asks himself. They ran into a public street area where BigHorn manages to bring down the Villain with a swift right hook to the back of the Villain's head, knocking the Villain out.

The crowd around BigHorn cheer that he managed to capture the Villain. "Thank you, Thank you." BigHorn says, taking in all the cheers he heard. "Now I must take this villain to jail where he belo—", "Hey numbnuts." Someone cuts him off. BigHorn turns around and saw what looked like an 18 year old boy with an impressive physique, wearing a black skin tight shirt, baggy white pants, tai-chi slippers, and has white hair with two pointy ends at the top.

"You're a hero right?" The Kid asks. "Yes I am. Why do you ask?" BigHorn asked, feeling on edge. The Kid simply smirked and said, "Time to hunt.", "What?" BigHorn asks, in a confused tone. "You're going to be my first kill, hero." The Kid simply answers. Now BigHorn is a little scared and so is the crowd that started to back away from the two.

"I don't know what you're talking about, but you just threaten a hero." BigHorn says, stating the obvious. "I'm going to have to ask you to surrender before you get hurt, kid." BigHorn said. The Kid simply smirks and says, "Bring it on, hero." BigHorn, finally having enough, threw a punch at the kid in order to end the fight quickly. But, the kid threw his own punch with BigHorn and collided his fist with his own.

"GAAAAAHHHHH!" BigHorn screams as the punches collide and a bone protrudes from his arm. BigHorn fell to his knees, holding his broken arm, as the Kid stood over him. "Well look at that. A so-called mighty hero is down on his knees." The Kid says, mocking him.

Everyone is scared now, BigHorn's arm is broken with the bone sticking out of the skin and the new villain didn't look hurt from BigHorn's attack. "I'm…not done…yet." BigHorn says as he tries to get up, only for The New Villain to blitz behind him and slam his fist into BigHorn's spine, breaking it. "AAAAAHHHHH!" BigHorn screams in agony as he falls to the floor. "I…I can't feel my legs. I CAN'T FEEL MY LEGS!" BigHorn screams in horror at the discovery that he can't walk anymore.

By then, the unconscious Villain wakes up and sees what happened. "Hey, thanks man, don't know what wou—" the Villain is cut off when The New Villain slammed his head into the ground repeatedly. "Trash." The New Villain says to the near dead villain.

The New Villain looked towards the crowd and saw that they had their phones out, contacting other heroes to come and save them. 'Perfect.' The New Villain thought to himself. "Wh…Who are you?!" BigHorn demands. "Call me, Garou." The New Villain, now identified as Garou, answers before bringing his knee down on the hero's head, knocking him out.

Garou's Pov

After I knock BigHorn out, I pile his body and the Villain's body from before and sat on top of them waiting. This is perfect for me. More heroes will show up soon and I will add more to my kill count. And civilians will spread my name around, bringing dread with it.

After about 15 minutes, at least 20 heroes arrive and instantly get scared when they see me sitting on their fallen comrade. "Surrender villain, you're surrounded!" A random hero says. "Villain? Sorry to disappoint you, but I'm not just some common thug like this idiot." I say as I pointed to the unconscious villain under me. "I'm a soon to be God level threat, which means that none of you nobodies will be enough to take me down." I say with a smirk which got them on edge.

"Tell us, who are you?" A female hero demands, so I oblige. "Names Garou. Wrecked a ton of so-called tough guys and I guess you can say I got a thing for monsters." I say. "Want a demonstration?" I ask. "Come at me and I'll take you all down. Let's find out who's the strongest here." I challenge them. They all are hesitating to attack me as if they're scared. Good. "Now don't make me wait all day, bring it on." I say, mocking them

"Grrr…Cease this foolishness!" One of them says, now irritated. "Foolishness?" I repeat him to mock him. "I can't believe you treat a threat like me this lightly, Mister big shot of justice" I say in a sarcastic tone. "Let me show you how I treat threats like you. Each and every coward here is cordially invited to a little slaughter party." I say as the fun begins.

"ENOUGH WITH YOUR ARROGANCE VILLAIN!" A clearly pissed off hero screams as he charges at me. Rookie mistake. I blitz in front of him and grab him by the collar of his shirt. "You were saying something about arrogance?" I mock him, cruelly. "Let him go!" A large old man with an obvious strength quirk tries to punch me into the ground.

When it lands, the only person he hit is the hero I had in my hands. "Tough break Grandpa, looks like you forgot to put more of that so-called heart you heroes call into that punch." I mock him as he looks to his right arm and sees that I broke it when he tried to hit me. "You heroes just don't get that the only thing that matters is that the strong" BLAM! "MMMHHH!" are strong!" I say as I uppercut him, knocking him out. "Night night Gramps." I say to mock him.

"Y…You're not human. W…What are you?" The female hero asks, in fear that her comrades were defeated by a simple man. "I'm a monster." I answer. "M…monster?" She asks, confused. "Heroes are always late to the party, while monsters take the initiative. They appear without warning, out of the blue, so listen up. You heroes and villains are on the human side, while I'm on the monster side." I explain what I am to her.

The other heroes are terrified of me, now that they know what I truly am. Except one idiot. "A human who calls himself a monster? You're delusional. You're simply a petty criminal, nothing more." He says as he prepares to use his obvious fire quirk. He's clearly a hero who needs to be taught a lesson. As he fired his quirk, in the blink of an eye I sliced his arm off with my bare hands. "W…What?" He says in disbelief. "These quirks certainly liven things up, but once you see through them they're ugly."I tell him as I hold up his severed arm. "H…how did you-" I cut him off as I grab and throw him to a brick wall, busting his head open.

I turn to look at the other heroes and see the fear in their eyes. "So, which one of you is next?" I ask. They all rush at me once, probably thinking I can't take on a full group. Oh wrong they are. I blitz through 8 of them in the blink of an eye as their bones broke under my fist. One tried to get me from behind, but dodge onto a wall and jump back at him, elbowing him in the face. The others went down incredibly fast and soon all of them are in one big bloody pile.

Once I am done, I look at the crowd that watched it all and I see the shock and horror in their faces as they witness their so-called protectors fall in front of them. "I think that is enough for today." I say, loud enough for everyone to hear me. "I think this pile of bodies gets my point across. Spectacular debut, huh?" I ask the crowd just to scare them. "Today is my declaration of war to the world and in 10 months I'll be even stronger." I announce. "And when I'm done, I'll be using UA High School as my throne. Till next time." I farewell them as I simply walk through them. Now to find my next kill.

No one's pov

All of Japan has just witnessed something they thought they would never see. Heroes, the pillars of peace and justice, role models for children, were now reduced to nothing but bloody piles. The paramedics came to take them to the hospital. Some of the heroes were still awake, groaning from the agonizing pain, while others were crying and begging for their mothers. It is humiliating not just to the heroes, but to all of society. Certain individuals had a mixed response to this massacre.

All Might's household

All Might's pov

I just returned back to my home in my skinny form a few minutes ago after training Young Midoriya to prepare him for my quirk when I turned on the news and witnessed what happened. "Dammit!" I curse myself. If I still had some time to change into my buff form, I could've been there to save them. But I couldn't and now there is a villain out there that claims to be a monster and can take on multiple heroes at once. "I swear Garou, I will bring you to justice for what you have done." I vow as I look at the T.V.

Midoriya household

Izuku Midoriya's pov

When I got back from training with All Might, my mother made some Katsudon, my favorite food, for supper. We were watching the news footage of BigHorn capturing a villain, until what looked like a new villain attacked him. I thought BigHorn would beat him, but instead had his arm broken and his spine snapping like a twig. Then more heroes came and fell to Garou quickly. Only one thought ran through my mind. This villain needs to be stopped or else he could hurt someone else. Hopefully, All Might can beat him and people can rest easily knowing Garou is put behind bars.

Unknown location

All for One's pov

I've seen many things in the hundred years I've lived on this Earth becoming a demon king, like in the comics I read. During that time I've hardly been impressed, but today is different. This Garou put up a great show on humiliating the heroes and showing how pathetic they are. He could prove useful to Tomura's new League of Villains and if he doesn't obey, then I will take his quirk and put it in better hands. "Be sure not to disappoint me, Garou." I say to the T.V. screen.

Bang's dojo

Bang's pov

So it has begun, my former student has begun to use his abilities to hurt others. Does he even know what it means to be a monster? No matter, I will contact my brother for aid. Hopefully, we can stop Garou before he hurts more people.

No one's pov

No matter the reaction, everybody knew that today marked the beginning of something dangerous. Something that will change the world forever. No hero is safe now. For Garou the Hero Hunter has risen and will face any and all who stand in his way.