Childhood.

Dawn Island - Goa Kingdom - Windmill Village.

It has been 7 years since the birth of 'Luffy'!

After Garp took him from his mother, he simply throw him to an orphanage for 3 years.

He still remember that after 3 years, he took him from the orphanage to 'home', and he simply told him.

"Luffy, this is your home now, I will not becoming the next days, so take care of yourself!" after he said that he simply left him there stunned, and he didn't come back until a year after.

Everytime Luffy remember his childhood he would shiver, 'No wonder 'Original' Luffy was an idiot! it was simply a defense mechanism to keep his mind'

At the age of 5, Garp would took him to the jungle to fight every kind of monsters, and somehow he would leave while forgetting him. the reason why Garp started his training early was that the boy showed a lot of potential, at the age of four he looked like a 10 year old boy, while his body was strong than others with the same age, he showed wisdom and intelligence, and he would become stronger every time he fight, he was advancing at alarming speed, that even Garp tried to take him to the marine training center forcefully, but luffy always refused.

The reason is simple, He could have left to the sea, when he was 5, but he need to stick to the plot line, at least until the plot begin. Garp couldn't teach him anything at the age of 6, even 'Haki' was learned in a single try, which lead him to come to a an interesting 'Discovery'.

One Piece 'World' didn't really have any 'power system'. First he thought that maybe there is, but never spoke of in the original story, but as he was trained by Garp, he understand that only 'Marines' have that system, as the age of 5 he was at the level of 'Captain', at the age of 7, he was already a 'Rear Admiral' level, but that lead him to understand more, that 'Cultivation system' of this world was abolished, even though heavenly essence was dense in this sub-dimension no one use it, even ' Armament Haki' was just enhancing physical power with your soul power, while 'Kenbunshoku Haki' was just using your divine sense to predict the actions of your opponent, but what interested him was 'Glimpse of the future' found in his memory from 'Earth'.

This was the second stage of 'Soul cultivation', even though this world didn't have cultivation manuals or guidance, there was still a ton of talented people and the more he thought about it, the more he become excited. but there was a cold look in his eyes every time he remember 'Devil Fruits' in his memories. it was that simple, whoever abolished 'cultivation system' was the one that throw the devil seed in this world.

In every part of the 'Omniverse', there is different cultivations systems, different foundations, multiple Realms! but there is one thing common between all this systems. 'Understand the 'laws' and concepts of the world, assimilate it, dominate above it, and create your own, surpass yourself and become a genuine creator'

While the first levels of cultivation is just about building your 'ship', a 'sturdy ship' which contain a 'strong body, strong soul, strong perception, understanding concepts and accumulating essence' after all if 'laws is an engine, essence was its fuel'

'Luffy chose the most sturdy lower system to follow : Body Refinement (at the age of 2), Embryonic Core (at the age of 3), True Core ( at the age of 5), Revolving Core ( at the age of 7) , Star foundation building (inside the core), Territory expansion, Heavenly Palace ( need a comprehension of some heavenly 'Law' or 'Dao').

in this 7 years of cultivation, Luffy look very different from his original 'appearance', he look more like 'Julius', as he was baptized by essence from when he was just a fetus, a slim ripped body and and and tall height, with dashing features and calculative eyes, in his hand was a 'straw hat', even though there was no bandits, Luffy still made a profound impression to shanks, and he was given the 'hat'.

Meeting Ace and Sabo, fighting together against bandits and pirates was the only time he felt childhood, his memories with Garp was a black stain in his mind.

Time goes on, while Luffy tried to not change the story as much as he can, Sabo left to the sea, then Ace too! the only one left in windmill village now was luffy and Dadan and her group of bandits.

In a jungle deep in the dawn Island, Luffy was standing in front of a gigantic lizard with his hands behind his back with the bearing of a 'God', the moment the lizard was 2 meter away from him, he only hardened his gaze, and the beast stopped in his track, sweating hard until losing consciousness.

'So this is 'Haoshoku Haki', it seems stimulating 'Ace' was a good thing after all'

Years ago, Luffy fight Ace and beat him hard while taunting him and speaking bad about his father, the reason was simple, he wanted 'Ace' to grow up, and not court death because of his hate towards his father, but what surprised him, was that 'Ace' unleashed his 'Royal Haki', and Luffy gain a lot of it, he understand what 'Haoshoku Haki' about, it was free and unfettered Dao, Imperial Dao, Determined and unyielding Dao, Sovereign Dao, it's just an embryonic form but enhancing it with spiritual force 'soul force' it would give a soul impact which weaken the will of others.

Will, Dao, Belief! is what make your 'Haoshoku Haki' (Stronger or Weaker)! Understanding that, he easily unlock his 'Haoshoku Haki'

At the Age of 17, Luffy completed his lower cycle of cultivation by building his Heavenly Palace.

Accurate power : above Admiral.

Concepts : Space - Time - Sword - Yang - Yin - Chaos.

First Law : Yin-Yang / Initial stage.

To complete his full cycle, he need a lot of girls, a lot of sex, to grow his law from initial stage to perfection.

Luffy finally would start his 'Adventure'.