Cohen of the Rebellion - Volume 2 Chapter 11

After causing a tech disaster in the real world, genius shut-in Rin Katsuro is sentenced by the gods and banished to Ereborn—a realm ruled by chaos, where ancient scripts control magic and dungeons feed on trauma.He wakes up in the body of a legendary war criminal—the Demon King's General—and is mistaken for the adoptive father of a demon princess.Armed with unstable “Error Magic” that lets him rewrite reality like code, Rin doesn’t want to be a hero... but when angels declare war on the demon races, and his daughter calls him “Papa,” he might just rewrite fate itself.This is the story of a broken man with nothing left to live for—until an entire world starts calling him Dad, Demon, and Destiny.

A surgeon accidentally got the blessings of a system, shocked the medical industry, and rejuvenated countless people.

- Description from Novelupdates

*********“You will become an immortal cultivator, right?”“Yes, mother. I promise,”*********An old cursed building with many trials,A system that helps with cultivation,A bloodline that was envied by many,With the help of these three things, a young man named Henrick wanted to fulfil a promise he made to his mother.However, there were many cultivators that were after his bloodline who would do anything for his bloodline.Follow Henrick to see whether he can fulfil his promise with the world full of enemies or will he become a stepping stone for others?.

200 years after the world has ended, the laws of society have long been forgotten.