It's been 3 years since Itachi and Luffy were born, nothing special has happened in these years.
In Foca Village we see two children playing with each other, of course they are Luffy and Itachi.
Itachi: Haha, you won't catch me, Luffy
Luffy: Just wait, I'll definitely catch you
Then a pretty green-haired woman, of course, is Makino, who is taking care of them.
Makino: Luffy, Itachi is lunchtime
On hearing the word lunch, Luffy burst out to eat
Itachi: How the hell is when you hear the word food you get fast.
Itachi Puff:
It has been three years since I was born in this world, I am happy that I was born in the world of One Piece, but without the strength it is useless, and the moment he thought about it, a voice rang in his head.
"Naruto world system is being activated"
Upon hearing those words, Itachi shuddered with excitement, it is true that he had an Itachi appearance so he was thinking if he had the power of Uchiha.
[Greetings host, I am your system ready to help you become more powerful in this world]
Well, my name is Monkey D. Itachi, put that into my data record and show me my case.
Name: Monkey D. Itachi
3 years old
Talent: super
Breed: Sharingan [1 tomo]
Jutsu:
Genjutsu Sharingan
Haki:
Arming Haki: No
Haki note: There is no
Haki the Conqueror: There is no
Tools: None
Well how does the system work? Do I have to do the missions or fight monsters or stronger people to increase my strength?
[The host can train his body in any way he wants to get stronger, he will only get shopping points when he defeats or kills anything, and friendly poles against others counts as well, note that defeat and killing will not generate more, they will be the same thing, so it's up to you For the host to make the decision]
"Okay, am I getting a starter pack?"
[System bonus: "Manual to get Stronger"]
"What the hell is that?" All he says is train and defeat or kill for points.
Well I'll eat and go to the forest for training.
After eating, Itachi went straight to the woods to train, after an hour of searching for a suitable place to start his training.
Well the training start time lets first do 1000 skin exercises, 1000 push-ups, 1000 squats to improve my strength before I go deep into the jungle.
After one month
"The system only displays my strength rating, and I don't need others at this time."
Strength: 350
"Hmmm, that's okay for a 3-year-old child."
Later, after 4 years, Itachi and Luffy are 7 years old
Currently Itachi is training in the woods as usual
Huh-huh Itachi breathing quickly while lying down from exhaustion after completing daily training "The system showed my strength level and learned jutsu"
Strength: 34,000
Jutsu:
Fire Vest: Dragon Flame Release Technique
Shooting: a great fireball technique
Fire: The Flower of the Great Flame
Shooting: hiding in the technique of ash and dust
Shadow reproduction technique
"Well I'll go out tomorrow and start defeating monsters to get System Points so I can see what I'm getting in the store"
The next day Itachi began searching the woods for powerful monsters to fight
A roar is heard nearby, and Itachi climbs into the tree to hide. "My first fighting enemy, I'm so excited
Itachi thinks about cloning shadow and 5 copies appear
After all the copies are in place, Master Itachi nods with a nod: Fire: hide in the ash-and-dust technique, all copies scream and unleash the chakra-infused ash that covers the entire area and burn everything in its path while all copies make quick stamps: Firing: Fire: The Great Flame Flower "which fires a large number of fireballs from each clone towards the three animals creating a great deal of fire as the monsters roaring were screaming from within
Again, let's end this. Itachi screams to the noise while performing the most powerful fire-style technique he can do right now, "Fire Emission: Superb Fireball Technique," which combines the other six to form a super-giant fireball that completely destroys the landscape and the three monsters.
With the clones removed, Itachi begins panting because about 50% of his chakra set is now used. Activating his Sharingan, he carefully looked at the destruction as it disappeared away after a while, and a huge volcanic crater could be seen where the three monsters were, their corpses on the ground. "Maybe I overdid it, but I had to make sure they were killed.
[Congratulations, the host killed all 3 monsters and scored a total of 25,000 points, shopping is available now]
Oh yeah, I'll check later, I gotta gather the rest of the flesh from the carnage haha.