One Piece - I Am A Different Luffy! - Chapter 21 - 20 - Orange Town 5.

The universe is grand and incomprehensible.Civilizations rise and fall every cycle.Death is only a number; mortals are innumerable.Fate is influenced, destiny is manipulated, and what is inevitable is rewritten.Only in ascension can one achieve eternity; however, destruction is always in wait.War and death are omnipresent, and the center of all conspiracies rises, too doubtful to place his trust in anyone or thing, besides himself.This is a story of cosmic ascension, outerversal domination, and finally, returning to origin.

A former sporting rifle shooter genius transforms into the ‘Juvenile Butcher’. While originally supposed to have received the death penalty, he was instead fortunate enough to have entered a secret and highly regarded armed force, throwing himself into the ‘Nirvana Project’.

After a period of 10 years, he now has time to freely recover. Having trained until he had excellent military and martial skill, he sweeps through various military districts and returns back to his hometown. Under the monitoring of a beautiful female cop, he re-establishes his family’s bodyguard service, protecting beauties and moving unhindered, his achievements causing the fame of his outstanding, god-level bodyguard service to resound across the world!

- Description from Novelupdates

Attribute Classification: Overhead/Western Magic/Strong Attack/Sweet

- Description from novelbuddy

Awakening a Legendary Class in the apocalypse...?Not even in his wildest reams Xavier could have imagined things would take turn for the better.Xavier was rotting in some corner of federal prison, destined to live a miserable life.However everything changed, when the apoclypse arrived. While the world around him burned, Xavier awakened a class, that rewarded him for killing monsters in one strike...for creating kill streaks!![Ding! Hundred monster Successfully executed, All Attributes increased by 100%]While others were struggling kill basic Zombie, He killed the god of apocalypse in one hit.[kill streak - One million][All of hosts attributes are increased by a million times.]With this prompt, Xavier ended the crisis that had been plauging the galaxy for millions of years.