MTL - The Mightiest Leveling System - Chapter 5538

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Winged beasts with a hundred-meter wingspan swooped from the skies above.Bloodthirsty creatures weaved and leapt between skyscrapers, in search of prey.Thunderous beasts shrouded in lightning took steps that shook the earth with each stride.Humans hid, trembling in the city ruins, praying for the protection of the World Tree.Outside the city, a gargantuan tree that eclipsed the sun, opened its eyes.“This is the city under my sanctuary. Leave, or meet your death!”In an instant, all beasts submitted.PS: Mutated Animals + Lord genre!Early-stage main storyline: Tame Mutated Animals and establish power.In the mid to late stages, the protagonist can transform into a human.

All I know is this is just wrong. I was just reading the latest chapter of One Piece in my computer. And an annoying survey popped up asking me if I want to play One Piece new beginning. Thinking nothing of it I said yes.And selected ‘Realistic’ difficulty.There was a game loading screen. Loading gibberish, and warning me that the world has a lot of surprises in store for me. Not all things are same, because I had to choose the ‘developer’s time-line’.And then telling me to brace for Character Synchronization. And before I knew it, I was no longer your average Joe. And this wasn’t earth either… no this was One Piece.And, I was Monkey D. Luffy. The future King of pirates.I mean what could go wrong? If Luffy could do it, so could I.But this wasn’t the same One piece world I remember. Some changes are small like Kuina being Zoro’s rival… who’s alive.While others were huge. Like… did you know, Whitebeard had an actual beard?! Man looked like Santa Claus on steroids. Jaked and shit!Just what did I get myself into?But does it matter?No.Because I’m going to have the time of my life. This was going to be one heck of an adventure.

The Hero’s party was attacked by a large group of powerful devils. The party will no doubt be annihilated if this were to go on.