In JJK With Naruto Powers - Chapter 154: Saving Yaga

A con-man and policewoman that are legends of their respective professions suddenly die, then are reincarnated and return to the Tang Dynasty of ancient China as little kids.

Accepting their second chance and forced restart, they choose to use the modern knowledge and specific talents that they have in their previous lives in order to live comfortably in this new life.

- Description from Novelupdates

After losing his parents to an accident, Haruto is thrust into a state of depression. Realizing he never had the power to change things, he eventually took his own life. Before moving on, he’s selected by beings greater than his understanding to balance out a world suddenly facing peril. The world of Mordell, where demon-like creatures and beasts roam, and Guilds of ability users called Warlords are the force to combat these creatures. Armed with the power to change things, he has the choice. Continue living in despair or accept his second chance and become a true Warlord.

Enter the Immortal Sect, cultivate the Immortal Dao.Others practice diligently and arduously, but Li Yunjing masters everything in one go, his comprehension defying the heavens.Understand the thunder magic, embark on the path of immortality.Practice the thunder magic, and take on the heavenly calamity.

Transmigrating into a mystical and eerie world, Fan Wu gains a special ability: a system to allocate attribute points! By slaying demons and monsters, he earns points to enhance his own attributes!From then on, a peculiarly muscular Taoist priest appears in this supernatural world.Facing trembling demons and monsters, Fan Wu reveals a ferocious grin.“Your purity is too low!”“System, enhance my stats!”