One Piece: Madness of Regret - Chapter 52: The girl with red hair(15)

The prosperity is about to come to an end, and the poor boy quietly rises.

Traveling across time and space, seek the leader of the world.

- Description from novelbuddy

One god, one faith, one world, one mage… I am the only mage in the world.

- Description from Ptwxz (translated)

Transmigrated into a flesh ball, my father swung a sword to chop me, why does this storyline seem so familiar?Have I become Nezha?A great cultivator from the Earth's end-times era transmigrates into Nezha. Watch as the young man navigates the prehistoric world, cutting through illusions, slaying dragon sons, subduing the Dragon Palace, and breaking heaven's barriers!

Welcome to Freia. A continent where evil magi ruled. Until firearms came, that is. Now the people live free of those demons…

More, however, must lurk beneath the surface.

Claude, a transmigrator from another world, finds himself in the midst of this changing world, attending ‘middle school’. Or, as he calls it, ‘boot camp’. His destiny was to graduate and join the military, but the future is seldom so simple.

His life, and the world, is set on the path of upheaval and chaos the day he finds a cookbook.

A magical cookbook.

- Description from novelupdates