MTL - How to Survive As a Villain - Chapter 187 When you open the door, open the door and open the door!

Crossing into the world of Naruto, and acquiring the One Piece system, with all the powers of the world of One Piece, swordsmanship, devil fruit, domineering.

-Do you think that your fire is very powerful? I have the burning fruit.

-Do you think that your thunder is very powerful? I have a thundering fruit.

-Do you think that your otter is very powerful? I have the frozen fruit.

-Did you said you want to die? Don’t worry, I also have a nickname: Death Doctor.

- Description from Novelupdates

A man who was once called the world strongest agent ended up becoming a teacher after his retirement to train the new generation of agents. After many years of training his disciples, he is killed at the age of 60 by the ploy of a secret organization and was reincarnated in another world with all his past memories.Though he was surprised by the magic and the strange species of that world, he adapted very fast to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his tight discipline in order to reach his goal: resume his career as a teacher which he left halfway through in his previous life.This is the story of a man who based on the memories and the experiences of his previous life, became a teacher who travels through the world with his new students.

A crownless king in the world of gods.Akamir had unrivaled strength, wealth, and prestige in a realm governed by martial ability.Yet one mistake cost him his life.When Akamir awakened in the fragile body of a disgraced noble’s son,he found himself in a world steeped in mana, ancient artifacts, and gods who watched from above—A world shaped by otherworlders summoned thousands of years ago.But the longer he lived in this new reality, the more he noticed its abnormalities.“I am a villain?”A world with a predetermined path.“...In a romance fantasy game and novel?”He had become the anomaly.