Reincarnated back into his 13 year old self after a battle at the age of 300. He demands another chance and got it. Now he needs to help everyone around him to keep millions of demons from destroying his city and his friends.

In his past life, although too weak to protect his home when it counted, out of grave determination Nie Li became the strongest Demon Spiritist and stood at the pinnacle of the martial world. However, he lost his life during the battle with the Sage Emperor and six deity-ranked beasts. His soul was then brought back to when he was still 13 years old. Although he's the weakest in his class with the lowest talent, having only a red soul realm and a weak one at that, with the aid of the vast knowledge which he accumulated from his previous life, he decided to train faster than anyone could expect. He also decided to help those who died nobly in his previous life to train faster as well. He aims to protect the city from the coming future of being devastated by demon beasts and the previous fate of ending up destroyed. He aims to protect his lover, friends, family and fellow citizens who died in the beast assault or its aftermath. And he aims to destroy the so-called Sacred family who arrogantly abandoned their duty and betrayed the city in his past life.—MyAnimeList

A warp in space-time occurred because of the Space-Time Demon Spirit Book, and Nie Li, who should have died in an ambush by God-rank Demon Beasts, awoke to find himself sitting in a classroom. He had returned to his 13-year-oid self. Everything had been reset. How will he protect his true love now?—Qidian

Nie Li lives in a world where spirits and humans coexist, possessing a special ability to read the Book of Spirits of Time and Space. In his pursuit to unravel the mysteries of this world, he embarks on a path of cultivation. Along his journey, Nie Li befriends the gentle Ye Zi Yun and the strong-willed Xiao Ning'er. Both women, despite their contrasting characters, harbor feelings for Nie Li who gradually comes to realize his own affections for them amidst various incidents. Simultaneously, Nie Li must confront aggressive spirits and deeper political conspiracies. Together with his brothers, they practice and enhance their martial arts to combat enemies, eventually unveiling the truth hidden behind the fog of this world. Nie Li is willing to sacrifice everything to protect the people and things he holds dear. He not only attains true love but also preserves the peace of the spirit world along with his partners.—WeTV