Since I Can't Learn Magic, I Have to Practice Immortality.

The polluted Mother Tree of Life… The Knight of Light who betrays his faith and walks in darkness... The forbidden son who was born in heaven and trapped in hell... Mo Huang's soul was reincarnated into the magical world, but he was rejected by his family because of his extremely poor magic talent, and became a small local lord. On the way to the territory, the system that had been sleeping for fourteen years woke up again. With the help of the system, Mo Huang was unable to learn magic and instead embarked on the path of cultivating immortality. After that, Mo Huang lived with his dog-eared maid, managing the territory while practicing and becoming stronger. I thought that my free and easy life could last forever, but I never thought of saving the captured elves, but it actually led to terrible conspiracies in the abyss——