Hey there, back for another chapter for this. I am going to put this as a two parter just like the original manga. This one is similar on how Tanjiro did it so you can guess how things are going to play out for Izuku here, well lets go.

For the last few months Izuku have been working nonstop. Practically training 19 hours a day, to gain enough physical strength and still maintain a good track in his grades. He had study on the few hours that he had free so things would work out when he transfer to UA.

Now after months of training with Sanemi, he said that everything that he taught to him was enough and he´s next big test was to break a rock?

Izuku saw that rock in confusion. With enough hits and work that thing could break in no time.

''Wait that's it! But sensei, what does this rock represent? Its supposed to be a demon or my adversary?'' Asked izuku.

However Sanemi was gone from sight, it was just izuku alone in the forest with the rock.

''Wait! Sensei! Where are you?" Asked Izuku out loud.

Izuku looked at the rock in wonder and try to do some analysis before he would try to cut it open.

''Let's see if I keep training for about 3 hours then do a nice amount of work out, then I should have enough strength to cut this rock and….'' Said izuku going a mumbling himself wondering what he should do to cut this rock.

Upon finishing his training and hard work, Izuku went at full force and swing towards the rock with his wooden sword.

''Hiya!"

CLANK

The rock didn't even got a scratch.

''Ok, maybe I need to keep trying as hard as I can.'' Said him.

CLANK

Izuku saw again that his hit did nothing to the rock.

''Maybe if I try once more it might work.'' Thought him.

9 hours later

Izuku was now laying down on the floor all tired, his hands were bleeding from over strength of holding the sword and the rock haven't even got a single crack. It was like an immovable object.

''Why I can't get a single scratch?! I been working hard for almost half a year and nothing. I got instructions and training by the current Hashira and I can't cut this rock?! Why is my body so weak?!'' Asked him to himself.

He felt all dijected and useless again. He survived all this training for what? To be mocked by a stupid rock?

''Why I was born like this? I have happy life and I have a good family, but why I was born without a quirk. Am I really….'' Thought him rembering the sad feelings that he had for most of his life before meeting the Demon Slayer Headquaters.

Then he remember of the words of Ubuyashiki and the others, the quirk doesn't make a person, the person that is more important. All the Hashira were quirkless and they could make the pro hero eat their words, Izuku remembered the words of Kanae Koucho on how it is important to protect his loved one from demons, who aren't assholes in costumes, they are real monsters bend in killing and eating people. He didn't want that his mom would be one of the hundreds of victims that go missing each year because of those monsters.

''Mom! I can't let anything bad happen to you!'' Thought Izuku.

The teen tried to get back up, but his arms and legs were so tired that he couldn't even move. It was like his body was telling him to stop but he wasn't going to listen to it.

''I need to work harder! I need to keep going!'' Said Izuku all determined.

''Well that's what I like to hear.'' Said a new voice.

Izuku then saw someone in the mist and then he saw a man with a demon slaying uniform. He had black hair and had a regular size for a person.

''Who are you?" Asked Izuku

''Name is Masachika Kumeno.''

The boy just saw this man coming towards him and just smile as he helps Izuku get back up.

''So you´re the kid who has been trying to master Wind Breathing?" Asked Masachika.

''Yes, I am right now trying to cut this rock to keep going.'' Said Izuku.

'Oh you are already here, you must have been working hard to get this far.'' Said Masachika.

''And what this rock represent?" Asked Izuku.

''How would you kill a demon. Remember they are tricky to kill without the sun, so you need to put all the strength that you have if you want to cut their necks at full force and that's not an easy task.'' Said Masachika.

''They´re necks are this hard!'' Said Izuku nervous.

The young man just laugh at that and then went near Izuku.

''You know I kept seeing you around and having these scars all around your body, let me guess Shinazugawa?" Asked Masachika.

''Yes, I been training under him over a few months.'' Said Izuku all tired.

The young man just laugh at that while Izuku looked a bit odd.

''How come you haven't run away yet?" Asked him with a laugh.

''He would have hunt me down like a wolf and drag me back, he is unstoppable.'' Said Izuku.

''So true. When Sanemi is focus on one thing he stop at nothing until its finished. He is a seriously perfectionist in some areas.'' Said Masachika.

''But I would like to know more on how I can use my sword to cut this rock, but I don't see him anywhere.'' Said Izuku.

''Well I can teach you a thing or two. I am a certified Demon Slayer, plus I also know Wind Breathing the same way Sanemi-kun has.'' Said Masachika.

''Really! Oh thanks Masachika-san it's really….''Said Izuku with a smile.

Soon the young man draw his own sword out of his waist and izuku in a great sense of reflexed manage to block the attack with his sword too.

Clang

Izuku was soon pushed back towards a tree as he saw Masachika smiling all calm.

''His strength is really no joke. Even a regular Corp member is pro hero strength!'' Thought Izuku.

''Good job on that defense, but…'' Said Masachika going to great speed again as he punches Izuku in the face.

Punch

''Ouch!'' Said Izuku now going to the ground.

''You need also to protect your body against physical attack. How come are you going to fight those heroes' students in the future?" Asked Masachika that in a blink of the eye managed to do a move that made Izuku do a flip in midair and hit the ground hard.

BAM

''Argh!'' Said Izuku in pain.

''So it's really true that I hear? You´re going to be a hero and a demon slayer?' Asked Masachika.

''Yes, I am going to be the first quirkless hero in Japan!'' Said Izuku.

''Well that's good to hear, not all quirks are that great either, my quirk is a really useless one. It makes me let my nails grow at least 2 inches, I pretty much live with no use of my quirk. Not everyone has to be gifted to help people, all you need is the right amount of dedication.'' Said Masachika.

Soon Izuku stood ready and got a real pose of demon slayer.

''You have a good heart. I can tell you´re not for money, attention or women. You´re doing this because you really want to help people and kill demons. However this won't be an easy journey now, first of all this rock isn't going to be broken in a day or two. It might take weeks or even months or hard work, are you willing to do this?" Asked Masachika.

Izuku didn't answer at first, he just stood still as he stare at the demon Slayer with intensity.

''I will work until my arms fall out.'' Said Izuku.

''Well that's good to hear, for that I am going to help you in something else.'' Said Masachika.

''What is it?" Asked him.

''I will teach how to fully use your lungs so you can use a breathing technique.'' Said Masachika.

With the Hashiras

The highest ranking members of the Demon Slayers were having dinner in a private room. Even Kanae was there with her sister and helping the others, however while eating Sanemi stopped and looked around in confusion.

''What´s wrong?" Asked Iguro.

''I felt like there is someone very important to me helping another.'' Said Sanemi.

''I also felt that a couple of days ago.'' Said Giyuu

''Nobody cares about you!'' Said Sanemi shouting at Giyuu.

''Oh don't be like that.'' Said Shinobu with a smile as Giyuu seem to not care.

''Yes, Giyuu-san is very liked!'' Said Mitsuri.

''We should just let it pass and focus back on dinner.'' Said Uzui.

Soon to the shock of everyone Kagaya and Amane arrived in the room with their children and Lady Nagant to see the Hashira.

''Good night my children.'' Said him.

''Master!'' Said the Hashira stop eating and bow towards him.

''At ease, Sanemi how is Izuku doing?" Asked Kagaya.

''Izuku is now doing the rock training. If he part the rock in half, he will have my permission to go in the final selection.'' Said Sanemi.

''He has truly improved since he started. He actually got a nice body now, not as flamboyant as mine but is still impressive.'' Said Uzui.

''He is truly a gifted child who is very determined. He might one of the youngest person who goes in the final selection and that has only trained for less than a year. Mitsuri as I recall you still hold the record for shortest time training before the final selection?" Asked Ubuyashiki.

''Yes master, 6 months only.'' Said her.

''I do hope that Sanemi has trained Izuku with intense passion and dedication as I trained Mitsuri all those years ago.'' Said Rengoku.

''That doesn't sound right.'' Said Iguru.

''No, this sounds perfect. It shows how focus Sanemi-ku is around Izuku-kun.'' Said Mitsuri.

''Can we change the subject please?" Asked Sanemi.

Amane then looked at Kaina.

''Kaina-chan, with Izuku status and who is affiliated do you think UA is going to try to find us?" Asked Amane.

''Yes, they are very rigorous about that, but as long the master talks well to Mister Principal in the phone I don't think they are going to try to locate us.'' Said Kaina.

''How things in hero society Kaina-chan?" Asked Kagaya referring to the current information that they have gotten with the crows.

''Not good, crime is still at large, the Hero Killer is still at loose, the Meta Liberation Army has gaining more followers and even implementing teachers at public schools.'' Said Kaina worried.

''And All For One?" Asked Ubuyashiki.

The Hashira knew of this man, a person with the power to steal quirks and other forms of power. He wasn't as powerful as a Muzan, but they knew that he was no joke and he was even one of the few individuals that Ubuyashiki had given permission to kill because he was a serious threat to humanity.

''From what I gather he is still hiding behind his medicine. He is trying to form a little league, right now it's just him, a guy with hands on his face and a mist man.'' Said Kaina

''I see.'' Said Ubuyashiki.

Soon Shinobu raised her hand with a question that has been bothering her mind.

''Master, ever since Izuku came here and you confirmed that One For All is this great quirk we feel that there are some pieces missing from this story. I hate to question you, but what is this all about?" Asked Shinobu.

Kagaya didn't have a smile right now as Amane hold his hand on that occasion.

'When the time is right, you´ll all and Izuku will hear the complete story that was passed down to me by my ancestors, about the two quirks that have been causing damage and heroism at the same time for the last centuries.'' Said him.

''understood master.'' Said all of them.

''Kaina please keep gathering information, once Izuku does the Hero Exam I fear we will need to know who should we trust.'' Said him.

''Yes master.'' Said Lady Nagant.

Kagaya knew this was a gamble, but he knew that Muzan was hiding in a big city like Musutfau or Tokyo, he was there eating innocent people and creating more demons. While heroes were worried about the next villain of the week, the Demon were worried on how they were going to kill the next set of demons made by that monsters.

''Izuku-kun you have my praise and admiration, however I can't protect you while UA. You will need to be smart and not be tricked by your old self.'' Thought him.

With Izuku.

Izuku was with some bruises and even a black eye. Despite the nice face Masachika was really strong and fast.

''Come on Kid, do you give up?" Asked him.

''No! AAAAAAAAAAAAAAAH!' Scream Izuku.

Izuku would spend weeks doing this, training with this mysterious man until he learns the right way to do the Wind Breathing.

So yes, I am doing a Sabito situation with Masachika, just getting out of the way he is really dead. I made Kanae survive, but he is not alive in here. I will go in detail what happens to him after the final selection. We will get more in the next chapter when Izuku show his strength against the rock, thank you all.