History:
"Kids I'm going to tell you an incredible story, the story of how I met your mother."
Voice out of nowhere starts yelling:
"VOI! Narrator, that is f*cking wrong story"
Narrator quickly replies:
"Sorry, sorry, sorry. Ok, now than,...
Our whole universe was in the..."
Again the same voice again out of nowhere starts calling:
"VOI! F*cking wrong story again, seriously, I shouldn't have payed you for telling HIS story. This is your last chance Narrator, than I will kill you."
Narrator again starts talking:
"I wanna be the very best, like no one ever waaaaaaaaaas pam pam pam to catch them is my real test, to train them is my goaaaaaaaaaaaal. I will tr..."
Sound of sword cutting through body of poor Narrator is heard and for a minute, there is complete silence. Than that same voice starts saying:
"VOI! I warned you stupid Narrator, now look at yourself, you're DEAD, you hear me? You are freaking DEAAAAAAAAD."
Than another voice calls to person who killed Narrator:
"Than why the hell don't YOU say his story Squalo."
Squalo: "VOI! Is that you BAKA BOSS?"
Boss: "Who are you calling baka Squalo, I will kill you where you stand, but first you should tell his story already, everyone is getting bored.
Squalo: "Ok ok, so people, listen or I kill you, this is story of Yamamoto Takeshi:
So, he got borned in Konoha into Yamanaka clan, but even tho his father was 2nd in command of Yamanaka clan, he tried to hide Yamamoto from fate of being shinobi. Problem was when Yamamoto reached 13th year of life and...
VOI! LISTEN TO THIS STORY BAKA BOSS."
Boss: "Shut up or I will really kill you, just hurry up, will ya? AND WHERE IS MY FOOD."
Squalo: "SHUT UP! Ok, so, where was I,...

Problem was when Yamamoto reached 13th year of life and was founded as prodigy of shinobi world.
First he became Genin, than Chuunin and than Jounin. His father than decided that they will move out of Konoha as it became corrupt and wanted to create soldier who would only obey from Yamamoto. His father decided that they will move into Kirigakure, because he knew Mizukage very well and was good old friend with him. When they reached Kirigakure, Yamamoto decided that he will become Jounin of Kirigakure and help it defeat anyone who stands in it's way. As years passed, Yamamoto was sent on many missions and thanks to his Kenjutsu skills, he became able to complete all of them with quite an ease, as they were mainly missions where he encountered high amount of enemies and defeated all of them, yes, defeated, but not killed, at least in most cases. Once, when he was still 14, I Squalo fought him and defeated him very easily, but than, 1 week later, we were faced against each other again, and I lost misserably.
Boss: "Are you finished already?"
Squalo: "SHUT UP BAKA BOSS, well, I guess I am finished, for now, but his story will continue. By the way boss, I think you shouldn't forget to who you lost back then."
Boss: "WHAT DID YOU SAY, I WILL F*CKING KILL YOU BASTARD."
And chaos breaks around as Xanxus starts shooting fire all around him.