After Entering and getting to their new rooms. Izuku laid down on his, to be comfortable with his new room (no all might merch).

Izuku: Well, what Now

Just like that, on cue, he heard someone yell

Joseph: Izuku, can you come downstairs 

Izuku heard this and went downstairs(yeah this Is a Two story house)and saw his grandfather In the main hall,

Izuku: Yes, grandpa 

Joseph: It's time for you to know how to use your stand, meet me in backyard, Avdol and  Polnareff will be there 

Izuku: ok

Then Joseph went to the backyard with Izuku following behind. 

IN THE BACKYARD

Izuku, Joseph, Avdol, and Polnareff where outside 

Izuku: So how are we going to train me

Avdol: Like this, MAGICIAN RED COME FOURTH 

Izuku could actually see the stand

Izuku: Wow

Avdol: As you heard me say, this is called, MAGICIAN RED

Avdol then use Magician Red to tie Izuku, arms,Legs and neck and then lifted him in air

Izuku's mind: this burns like hell 

Izuku then summoned Star platinum 

Joseph: There it is, and Izuku remember this, A stand can hurt another and when a stand dies so does the user so be careful 

Izuku then broke free from the restrains and then sends punches towards Magician red

Star platinum: ORA ORA ORA ORA ORA ORA ORA ORA ORA ORA

And with one more punch magician red, was completely bloody, so was avdol And he had wounds, which made Izuku worried 

Izuku: I'm so sorry, Mr. Avdol

Avdol: I-it is, quite alright, I didn't know your stand was this strong

Izuku: Are sure, do you need help

Joseph: Don't worry, I'll take him in the house and help him, c'mon Avdol, I'll help you and Polnareff train him

Avdol: Ok, and Polnareff 

Polnareff then looked at avdol

Avdol: Be nice

Polnareff: Whatever

Izuku then thought* he's almost like Kaachan*. Then Mr.Joestar and Avdol went inside to treat his wounds. Leaving Izuku with Polnareff 

Polnareff: Just because your Mr.Joestar's Grandson, doesn't mean, I'll go easy on you, so are you ready

Izuku: Yes

Polnareff: alright, SILVER CHARIOT

(Forget about the manga part of Polnareff and silver chariot)

Izuku: wow

Polnareff: Alright

Then Silver chariot began to swing at Izuku 

But izuku, use star platinum and send punches to him and blocking his attacks, they were on even pace on attacking

Polnareff: Wow, you're keeping me up with me, impressive 

Izuku:oh really, THEN TAKE THIS 

And then with one punch he was able to punch chariot in the face

Star platinum: ORA

He then punched silver chariot in the face, The punch of Star platinum made Polnareff spit up blood and made him stumble back, and made him recall his stand and then he sat on the ground, he then grabbed his cheek

Polnareff: Holy shit, damn, how strong are you

Izuku then recalled star platinum back and then star platinum vanished 

Izuku: I don't know, and I'm sorry if I hurt you

Polnareff: Ok, two things

Izuku was confuse

Polnareff: For, one anyone who tries to fight you will get destroyed and two don't say your sorry, you have to act like a person who shows they are serious, not playing around, that punch you gave, which hurts like hell, is serious, and when you said sorry, you sounded like you weren't  acting serious, in every fight, you have to be serious, but still good job 

Polnareff then gave him a thumbs up and smiled then Izuku gave him a thumbs up and smiled too.

Polnareff: Ow, it still hurts, I think you busted my nose and cheek

Izuku: I'm sorr-

Polnareff: What Did I just say 

Izuku: I mean, should we get back inside so, grandpa and Avdol can help you with your injuries 

Polnareff: Yeah, ow, that sounds nice.

Then they both went inside 

TIMESKIP

When Avdol and Polnareff got medical treatment, They all went to a table to talk to each other

Izuku: Grandpa, can I asked somethings 

Joseph: Sure, Izuku 

Izuku: why haven't you take off your other glove and how did you all meet 

There was silence and then Joseph then took off his glove, revealing his mechanical hand, which made Izuku's eyes widened 

Joseph: I lost the real thing, 50 years ago

Izuku: I'm sorry, for asking 

Joseph: It's alright

He then put his glove on 

Joseph: I met avdol a few years back and I met Polnareff when...

Izuku: when, what 

Polnareff: when I was looking for the person, who killed my sister(when I watched when Polnareff talked about how his sister died, that made me sad, like I feel bad for Polnareff and his sister and her friend 

Izuku eyes widened when he heard that, he was in shocked

Polnareff: That man, Was a stand user like us and his name was centerfold, Back in France, my sister and her classmate was walking home From school, and then They saw a man near them, the man was in the rain but it looked some sort of barrier was around him because he was dry, and then the man used his stand to attack Her classmate, it looked like the wind cut her chest, and then he attacked my sister, he took her innocence and then killed her, her friend made out alive,  to tell me what happened, all she saw was the man had two right hands.

Izuku couldn't believe that someone can do something so terrible

Polnareff: I promised to find the bastard and make him pay with his life, during my quest, I ran into Mr. Joestar and Avdol, at a restaurant,Mr. Joestar was wearing his gloves while he was eating, I asked him why he was wearing them and then showed me his hand, Mr. Joestar and Avdol asked me why did I asked them that Question, I told them everything about the quest to find the man, They wanted to help me out, we were searching until we found him, his stand is able to Hurt our reflection, and that can hurt us in real life, his stand can go throw one reflection to another, he is basically light, He had stand also had a knife, but somehow we got him, we got the bastard, and know he is rotting in hell

Izuku: I'm sorry, that happened to you

Polnareff: It's alright, I avenged my sister, the devil is already dealing With centerfold, right now we should go back to training to make sure, that if anyone is trying to kill you, you'll be prepared 

Izuku: Yeah, lets do it

And then Izuku and Polnareff went back outside, leaving Avdol and Mr.Joestar smile to see, they are friends