Reincarnated as the Baron's son: My Infinite Card Upgrade System - Chapter 11: Diamond rank

In his previous life, because of a cultivation technique that he could not cultivate, Sword Genius Ling Dao was hunted down by the Purple Vine Holy Land multiple times. Not long ago, the Purple Vine Holy Land killed many disciple of Ling Family s. In the end, he was still suppressed by a peerless expert at the bottom of the Divine Sword Mountain. Day and night, he suffered the pain of ten thousand arrows piercing his heart!

After his reincarnation, he was Crown Prince Xiao Yao. However, because of the Sword Qi in his body, Ling Dao had become extremely weak, and was unable to cultivate. His mother had left him when he was five, in order to find a cure. His father had barged into the Celestial Dragon Forbidden Area for him a year ago and still had not returned.

The King Carefree Palace had been annihilated, Jiang Zhong fled a thousand miles away with him, and Jiang Zhong, on top of the Celestial Sect, had been humiliated … The misfortune that followed after, was that it accidentally helped him to open the peerless Desolate Immortal Slaying Force cultivation technique, and from then on embarked on a journey that defies the heavens! ” It won’t be long before I make them regret their actions! “

- Description from Novelupdates

Quinn Winter is a young man from another world. One day, he is suddenly chosen to become the new Demon King. But the Demon Kingdom is in big trouble – it's losing a terrible war against the human kingdom called Gran'le.To help his people, Quinn comes up with a risky plan. He will sneak into Gran'le and learn their secrets. But things don’t go as planned. A powerful noble sponsors him, and he ends up joining Heavenward Academy, the top school for training future heroes.At the Academy, there's a big challenge called the Selection. The best students become Paladins – magic knights who fight demons. Quinn doesn’t want to become a Paladin. He is a demon king! But now, he’s stuck in the Selection… and if he wins, he’ll become the very thing he’s supposed to destroy.He started the day badly. Now, things are getting even worse.

An ordinary student, a wretched peeper, a cowardly teenager with a kind heart. In a terrorist attack, he inherited the knowledge of countless elites, embarked on a path of God Jagged Tu…

He is an artist!

He is a mathematician!

He is a psychology Doctor!

He is a master of fighting!

In fact, he is a man

Taken off raw site:

A wretched, dirty young man is working during the summer when he was caught up in a mysterious explosion. After that explosion, the young man is then left with the memories and knowledge of dozens of the world’s experts.

He has changed, his heart has become cold, iron-blooded. He became a killing machine, his mind turned mechanical, calculative. Everything goes according to his plans and calculations!

In this magical, slaughterous world, a door is opened for him…

- Description from Novelupdates

The World of Immortals, it is the world every mortal long for. For many, it is an eternal glory to cause a spatial distortion and enter the World of Immortals. But the vicissitude of time is simply merciless, the legends regarding immortality had long been forgotten.