MTL - American Manga God - Chapter 57 it's a compromise

After being betrayed and killed by his own brother, 17-year-old orphan Elias Black is given a second chance—by a mysterious, demonic entity. Reborn with the “Devil’s System,” he must now collect souls, gain abilities, and exact revenge on those who ruined him.But each power comes with a cost—and the devil never makes a deal without expecting something in return.As Elias grows stronger, unlocking deadly skills and forming uneasy alliances, he faces an even darker truth: his rebirth is part of a much bigger, bloodier plan.

A man is reborn into the world of Avatar: The Last Air Bender as a waterbender from Katara's tribe. Best of all, he was the same age as her, and he had a system with him to help.He knows the future and a system that lets him continuously get stronger by completing quests or long-term missions, as well as giving him the ability to copy abilities from others for himself. He will become invincible in the world of Avatar, even more so than the Avatar himself.

I’m a policeman, we took over the crime scene, and all the idlers and other people flashed!

Are you a detective? Do you have a formal license? Is it part of the police system? May I list you as a suspect?

Detective? Sorry didn’t hear it.

You want to reason? I’m sorry I’m not interested, but I’m standing there watching us handle the case!

Hey! Don’t move around at the crime scene, it’s you, that kid over there!

——New scum, listen to the teaching

- Description from novelbuddy

The first part is finished, and the second part is starting. Two worlds of immortals and demons, and the boundless universe. This decides the tone of the second part!