The Kind of Evil - Chapter 4: Magic & Mana.

Turns out your childhood best friend — the one you always thought was a dude — was a babe all along....And she has WHAT? A Yuri harem? (An all-girls harem? Seriously?)While she attracts women as easily as breathing, women run away from you the moment you breathe?

He is Monkey D. Luffy, but not the original Monkey D. Luffy, because in this world, that one is Lucy, his blood sister, while he had a peaceful childhood with his other three brothers. They all ended up following different paths since he didn’t have his memories. It was only when he entered a barrel lost at sea to save himself that he finally began to regain all the knowledge he had of this world from his past life. On top of that, he realized he could use this knowledge to his advantage to acquire everything he needed on his adventure. He was given four chances to summon people to start his journey, and more importantly, he finally received his two devil fruits, becoming powerful from the very beginning, with a plan that stretched to the end of his adventure.This story is the adventure of a man called Monkey D. Luffy, with the goal of becoming the emperor of all the seas in the world. For that, he will find the One Piece and destroy the World Government, for they cannot coexist. Be it the Marines, government agents, CP units, Tenryuubito, Holy Knights, Gorosei, or Im, Luffy will walk over a mountain of corpses.“I want you in my crew. Together, we will change the whole world and turn it upside down.”“Hahaha. Don’t worry, I believe in your potential, that's why I want you in my crew.”“My swordsman already fought you and lost. Now let’s see the strength of the world’s greatest swordsman too, right, Yamato? I hope you don’t mind fighting two rookies at once...?”“Awaken... Awaken my power... and destroy all your enemies...”“It’s good to see you after so long, Grandpa... and you, sister.”“Monkey D.? The most dangerous family in the world!”“Isn’t it a beautiful scene? Two Shichibukai and a Vice Admiral as my trophies! Come on, take a good picture and put it on tomorrow’s newspaper cover!”“I declare this kingdom my territory!”“Enel, you’re nothing but an idiot with a god complex. If you’re a god... then I’m a god slayer.”“As you said, Teach, people’s dreams never end! And if people’s dreams never end, why should I stop?”“Doflamingo... Jake... you’re so far from home. I hope you don’t regret this.”“You narcissistic woman, how can someone be so annoying and arrogant?”“What did you say, you damned man?!”“I now declare you husband and wife.”“It's time to return to the Blue Sea, after all, we have a world to shake.”“CP9? What a disappointment, Sengoku. I want money for them and Doflamingo... I want 2 billion berries at Enies Lobby in a few days.”“Enies Lobby was completely destroyed...?”“I've fought Mihawk, Jimbei, Crocodile, Doflamingo, Hancock, and Moria... you're the only one left, Kuma...”“It seems we've finally met, Rayleigh...”“Let's invade Impel Down!”“I came here to find you, sister, it's time for you to join my crew... Joygirl...”“It looks like we've finally arrived at the war.”“Sengoku... you tried to arm yourself to execute my brother, so I'll make an example of this Tenryuubito for the whole world.”“You can't do this...!”*BANG!*“He actually did it, that bastard....”“Your chains are loose, move your ass and get out of Marineford!!”“Saturn!!! I'M GOING TO KILL YOU!!”“I couldn't kill you last time, Akainu... but I'll make sure to do it now.”“Destroy the rest of Marineford.”“Let's get out of here. When you return, you'll take over this country for your family, Rebecca.”“No matter if we're on opposite sides... I will always love you, grandpa.”“It's time to start our training.”“Let's begin. Now, let's head to the New World, capture territories, and grow our fleet.”“Is the entire Straw Hat fleet ready? Now let's head to Wano, after all, we have a war against two Yonkou!”

Before the disfigurement, everyone loved Ling Chunan. After the disfigurement, Ling Chunan became a plague that everyone avoided. He was held on captive by his own agent afterwards because he was so ugly now, desecrating his love. Finally, Ling Chunan chewed himself to death because he was starving. After his death, a thing that claimed to be the counterattack system 098 found him.

A long time after, a certain counterattack system of a host with a 100% success rate posted a message in the System Forums.

《Emergency Help Request, my host is a masochist! He won’t be happy if every meals doesn’t have meat, and if he doesn’t have meat to eat, he will start to gnaw himself! How to treat this illness?!》

Great God : No need. I have a fast recovering ability. I will let him bite me.

- Description from Novelupdates

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted 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 rigorous 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 students.