Kami-sama no Memochou - Volume 3, Chapter 1

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates

One of the Conferred Martial Emperors, Gu Feiyang, passed away in the Tiandang Mountains and was reincarnated 15 years later as Li Yunxiao of the State of Tianshui, embarking on a heaven-defying journey against the innumerable geniuses of the time.

The nine levels of the Martial Art; the Divine Realms of the ten quarters. From then on, the whole world fell into chaos!

Blessed with unlimited mana, Noah travels the worlds and sees rampant corruption and injustice.

Some people transmigrate into Emperors, others become wangye.

They live in luxury; their hands covering the Heavens.

Some people transmigrate into shizuns, or sect leaders.

They would have the respect of all, their powers supernatural.

Some unlucky souls become villains, but even with their terrible reputations they would still have enough power to summon rain from the sky, maybe even manage to kill off the protagonist.

But Li Changtian, a stand up young man from a good family, who died on the battlefield protecting someone, widened his eyes.

He! Transmigrated!

Into a person everyone wanted dead, with an unabsolvable crime!

Li Changtian: “??? Wait wait, did something go wrong somewhere?”

The magistrate of the Imperial Justice Bureau, Yan Shu, who hated injustice more than anything in the world had just stepped onto his head and said in an ice cold voice: “A life for a life.”

Li Changtian: “&%%%￥&￥#@”

- Description from Novelupdates