Harry Potter: Beyond Good and Evil in the Wizarding World - Chapter 11 - 10. History.

Soldier King Li Qiang, who was part of the Special Forces ace army's Winged Dragon commandos, had accidentally broken the relationship between his fiancee and his adulterer and had lost his life because of this! Under the effects of the treasure, he was reborn as a normal high school student, and actually discovered that the school beauty, Lin Ya Shi, was the daughter of his fiancee and his adulterer. In order to take revenge on his enemy, he used the opportunity to get close to the Lin family while the school beauty was his bodyguard, but he discovered that a huge crisis was approaching everyone …

He, since childhood, had followed the Foreigner to practice the Defying Heaven Art, entering the most secretive special forces and becoming a fearsome assassin that made others tremble at the mere mention of his name. After a single failure, he took early retirement, but he ended up as the personal bodyguard for a rich heiress, a school beauty. Accidentally provoking some mysterious Cultivators, he gradually unveiled a hidden world of Cultivation beyond the mortal realm...

In ancient times, there were seven types of evil thoughts, each of which possessed the power to confuse, and muddle, people’s hearts. Every single person that came into contact with one of the seven, would inevitably undergo a sudden change in personality and temperament, and commit the unforgivable crime of murder.

Determined to rid the world of these seven evil thoughts, Lao Zi forced the seven evil thoughts into seven separate bamboo strips and secured the opening of such bamboo strips with the Phoenix Lock, and, in so doing, finally succeeded in sealing the evil bamboo strips.

But who would have thought, that the evil bamboo strips would, in due course, reappear on the surface of the Earth……

- Description from Novelupdates

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates