Past Life Returner - Chapter 400

In Ten Heavens Domain, full of respected powerhouses, juvenile Ling Tian accidentally obtained a mysterious iron sword. He refined the Supreme Martial Dao, studied the Divine Spirit Array Laws, fought Ten Thousand proud and arrogant Heavenly Clans, and was undefeated! Seven Feet Sword Tip sweeps away the world, within the Ten Heavens, I am the Supreme God Monarch!

- Description from Novelupdates

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

Lin Feng tried to be the diligent and hard-working good guy. He studied hard, did his best to make his family proud and not get into trouble, but when he saw a girl being taken advantage of, he had to intervene. He had been tricked, sentenced to 10 years in jail and framed for a crime he never committed, all was lost. If his life was over he would take those who ruined his life with him

Suddenly he opens his eyes again. He is not dead, but alive in the body of the Lin Feng of a different world. This Lin Feng had been killed as trash of cultivation. This world where the strong had no regard for human life and would kill freely if they had the strength. Called “trash” and thrown away, with vengeance in his heart he will rise to new heights opposing the will of heaven and earth.

“Do not judge others in ignorance within my presence.

Those who think to harm someone should be ready to be harmed.

Those who are open and respectful shall receive my kindness and respect.

Those who plot against me are seeking their own death.

This is true, for I am death… I am Lin Feng”

- Description from novelupdates

She was originally the young miss of the Marquis Estate, but became a peasant girl due to a mixed-up at birth.