Oathbreaker: A Dark Fantasy Web Serial - Chapter 20Arc 3: : Rose Malin

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

- Description from Novelupdates

In a distant future, seven centuries after the cataclysmic mana storm, the world of Gaïa transformed into a realm infused with magic. The fabric of reality shifted, revealing the manifestation of stats, skills, and levels through ethereal windows, visible to all. A new era emerged, where humanity awoke to the concept of Classes, bestowing upon them unique abilities and the potential for greatness. However, only the truly exceptional would ascend to seize the Throne in this extraordinary Era of Players.Noah uttered profound words, his eyes shimmering with an unearthly force. “Life itself is akin to a prison, but fear not, for I, Death, shall set you free.”

Lingyun, a fierce and savage cultivation genius takes over a dead teenager’s body. Coincidentally, they are both named Lingyun. Set in a alternate version of the 21st century, teenager Lingyun has been killed by someone with a grudge.

- Description from Novelupdates

After successfully reaching the Core Formation Stage and forming his Golden Core, Bai Langtian was betrayed by his own Master. His core was ripped from his body, and he was thrown off a mountain cliff into a valley full of demonic beasts.Thankfully, he survived the fall, and met his senior sister, Shangguan Yue Ling.She too had been betrayed by the same Master and pushed into this valley ten years ago. Ever since, she had been surviving alone by eating the corrupted flesh of demonic beasts.Now, Yue Ling revealed to Langtian a new path of cultivation:Demonic Cultivation.To reclaim his strength and take revenge, he must consume the flesh and essence of ten thousand demonic beasts.