One Piece: Invincible Starting From The Fruit Of Words - Chapter 4 System Store

Fang Ze traveled to the world of psychic forensics and activated the detection system.

Since then, the world has gained a crime-solving wizard. In just one year, Fang Ze became the captain of the police force.

Suspicious disappearance cases, corpse dismemberment cases without clues, heinous vampire cases…

With his keen judgment, Fang Ze relied on the assistance of the system to grow all the way.

With the passage of time, Fang Ze suddenly discovered that this world seems to be more than just a psychic forensic doctor…

- Description from novelbuddy

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’.

In order to live he must get close to girls, what kind of rule is this? Tang Zheng possess the Nine Yang Saint Body, a rare body constitution that is hard to come across within a millennium, yet he must absorb pure Yin energy to stay alive. In order to live, he will fight! Absolute campus belles, goddess teachers, charming housewives, haughty lolis… all kinds of woman walk into his life causing him to be surrounded by beauties!

- Description from Novelupdates

When Caesar learned that he had traveled to the world of pirates!

In order to become stronger, I started hell-style training, looking forward to going to sea one day,

Stir up the situation and rule the world!

One day, a pirate group came.

Looking at the familiar figures behind the captain,

Caesar instantly knew his name – Lockes!

After the Island of the Gods incident…

Garp: When did a Caesar appear in the Rocks Pirates? Almost fell into his hands!

Roger: What kind of strange ability is this? Domineering! ?

White Beard: The scars on my body are thanks to Caesar!

Golden Lion: How is it possible! What ability is he hiding! ?

Kaido: Bastard, it turns out that this guy has been paddling all the time!

- Description from novelbuddy