Marvel: I'm a Symbiote - Symbiote 0304: Chaos Core

After dying in a tragic accident, Oscar was reborn into a lowly tribe in an ancient world of great magic where only the strongest survives. Following the decimation of his family, his only solace comes in the form of a remnant which resides in his body.Live the tale of powerful warriors and deadly monsters, and tell the story.

After all the things that he had done in his life, Alex realized that it was already his time to die.

This novel is also known as The Demons Beside Me

Chen Zhao can summon demons and see Death.

“Beelzebub, use your Gluttony ability to treat this patient’s anorexia.”

“Raymond, this old man wants to regain his manly function. You know what I mean.”

- Description from Novelupdates

Aomori, who has a monster-fighting system, came to the world of One-Punch Man and gained the ability to enter various instances.

Therefore, “Founder of the Hero Association”, “NO. “And other titles fell on him one after another.

Comprehensive flow, the main world One Punch Man.

Completed dungeons so far: Pokémon – Demon Slayer – Sword – Pokémon – Digimon – Spell Return – Yokai Comprehensive World (Girls that Noragami Inuyasha can see, etc.) – Pokémon – One Piece-re0-Dragon Ball wait.

- Description from novelbuddy