I Can't Practice Martial Arts: I Can Only Cultivate Immortality

[Traditional fantasy + no heroine + hidden identity + decisive killing] Shang Xuan traveled through the world of martial arts and became a direct descendant of a small dynasty. However, he was unable to open his veins and practice for sixteen years, and he was gradually marginalized. Once he had an epiphany, he discovered the method of cultivating immortality. In a world of martial arts, you want me to cultivate immortality? How to convert the system and where to get spiritual power? Fortunately, I also learned a technique that temporarily solved this problem. It's just internal and external troubles that are about to destroy this family. Shang Xuan had no choice but to take action secretly to gradually resolve the crisis. Facing the coming general war, after seventeen years of being a homebody, he walked out of his house for the first time and embarked on an unknown journey of fighting for resources, robbing treasures, and finding the truth. As he learned more and more, he discovered that the world was far from being as simple as he imagined, and the method of cultivating immortality he had learned was not free. Faced with the great fear of the unknown, should you fight back and seek a chance for yourself, or should you be a chess piece and let the chess player decide your life and death? Shang Xuan had already made his own choice. Damn that bullshit chess player, are you training elites? I am killing the elite. Not only will I destroy all your chess pieces, I will overturn the chessboard and beat you to pieces...