I Have Infinite Systems In The Immortal World - Chapter 18: Old Man and Zither

In previous life, I was just a mediocre guy, and accomplished nothing.

After reincarnation, I seize the opportunity of being a legend of the times. In this life, I am the protagonist in Tianxuan World, a great master of martial arts and a founder of making elixirs. What? You want to compete with me in weapon and equipment refining? Then, you should know the Craft God is my disciple…

- Description from Novelupdates

Once, because of a pair of purple eyes he was scorned. He is a wangye known across the land, cold and bloodthirsty, looking disdainfully upon the world.

Once, because of a mother’s death she received a father’s resentment. She is a publicly known junzhu whose looks have been destroyed, pitiful and weak.

In reality, he has a pair of this world’s most beautiful eyes, the most formidable background, the most imposing strength.

In reality, she has a peerless face, the most unshakable background, and the most ingenious medical skills.

She, Lan You Nian, aloof and cold-hearted, underneath the appearance of a celestial maiden is a battered, wounded heart.

When the cruel and ruthless him met the indifferent her, who adores who most deeply? Who once again puts a smiles on for whom?

- Description from novelupdates

Synopsis is in the beginning first chapter, so you can try to read it first.Zhang Fei is an ordinary human, but he is also an Incubus, and he also a Heavenly Fox.

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.