Sports Medicine Master System - Chapter 78 - 73: Why Do Muscles Cramp?

struggle for dominance, where power rules above all.But you are no chosen hero. As the third son of a Viscount, you hold no influence—just another noble without purpose. Your knowledge of technology and strategy? Worthless here.Then, everything changes.The cards from your favorite strategy game—the very ones you built and mastered—are now real. No longer digital symbols, but an army you can summon at will. In this ruthless world, where the weak are crushed and the strong dictate fate, this power is your key to survival.You refuse to be a victim. Armed with an army beyond imagination, you will carve your own destiny. Not just to survive—but to conquer.“Soldiers, attack!”..........Note: If you have any questions or comments, feel free to share them!

Seven years ago, after their breakup, he disappeared without a trace.

The end of the world is coming, the world has undergone great changes, and everything has changed. Plants, animals, and even insects, as long as there are living things, have mutated.
Become more powerful, and even evolved supernatural abilities, such as chickens and ducks that can fly to the sky, such as cats and dogs that can breathe fire.
But only humans, without any obvious changes, seem to have fallen from the top of the food chain to the bottom of the food chain overnight.
Any creature that can open its mouth to eat can treat humans as food.
But fortunately, this world has not completely killed humans. Gradually, humans discovered that they had the ability to cultivate compatibility with other creatures.
As long as it has a high degree of compatibility with some powerful mutant creatures, it can be used for its own use to achieve the purpose of protecting itself.
Fang He is a person who is very compatible with mutant animals, but it is also because of his ability that he has changed from the strongest to the stupidest.
Fang He, who was reborn, said, “Hmph, this time…”

- Description from novelbuddy

An ordinary office clerk was accidentally reborn into a vast and mysterious world of Xianxia, becoming a member of a small cultivation clan.The story begins in an endless sea of sand, in an oasis called the Yuquan Lake Oasis.