Shini Yasui Kōshaku Reijō to Nana-ri no Kikōshi - Chapter 71 - Crucible Street (part eight)

In every story, there exists the hero and the villain, the protagonist and the antagonist.And like every story, the hero always wins, and always gets the girl.But what happens now that I died and became a villain in the last book I read? Not even a proper villain, but one that the protagonist kills in the early chapters.I don't want to die again, and I don't want that simp of a protagonist to walk all over me. Maybe I should just become a better villain.I've always admired the smart badass villains that took on the protagonist. Maybe I can be one of them, maybe I can win—the first villain to win against the hero.I'll rewrite this story into one where I become the greatest villain. Call me sick or evil, but it's my time to shine.

Ning Shi, a man from Saturn, accidentally downloaded a game on his phone called the Age of All.

“Beep! Clone successfully created!”

Ning Shi received a clone in the game. Whenever his clone got stronger, his real self would get stronger as well.

“Your clone has trained in the training room for 12 hours. Vitality +1, Mentality +1.”

“Your clone has slain the Earth-Dragon. You have received the Earth-Dragon Bloodline.”

“Your clone has consumed the Charm Fruit. Beauty +10.”

His clone started to conquer the game, created his own faction, and left a legacy.

“Your clone has successfully won the heart of Alice the Rose Duchess. Alice will be arriving in your world shortly. Please be mindful of your surroundings.”

Zheng Tan somehow returns to the year 2003, turning into a black cat. Picked up from a rubbish heap by the Jiao family, he is given the name “Charcoal”, and so begins the life inside Professor Jiao’s family. Zheng Tan remembers that he was once a person, but currently his body is that of a cat. He has no way of speaking the human language, but can understand it, and even retains the thinking and IQ of a young 20 year old youth. Read along as he adapts to this new world, and somehow tumbles from a group brawl to catching a thief.

- 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.