Changsheng: My Proficiency in the Troubled Times of Demons and Demons

In a world of chaos with demons and monsters, human lives are like grass. Xu Changan traveled through time and became a low-level prisoner in the Demon Suppression Department responsible for dissecting demon corpses. Good news, he gained immortality. The bad news is that just because you won't grow old, it doesn't mean you won't die. Any little demon that comes out of the prison can be reincarnated in advance. Fortunately, Xu Changan found that he could accumulate proficiency in any skill he practiced. Perfect sword skills can break limits. If the skill breaks the limit, entries can be created. When different techniques are practiced to the extreme, they can be integrated with each other and continue to transform. Is the Five Tigers Door-Breaking Knife too weak? Then practice for a hundred years, integrate the slaughtering technique, the decapitation knife and the White Tiger's evil spirit technique, and turn it into the White Tiger Prison Suppressing Knife. As time passes, dynasties rise and fall. The former geniuses turned into loess, and the prosperous Immortal Sect became a ruin. Only Xu Changan still walks in the world. Until countless years later, the demons from the sky came and the ancient gods awakened. When all sentient beings were in despair, Xu Changan took up his sword and walked out of the river of time. "I've been practicing this sword for a little longer." "That's thirty-six thousand years."