One Piece: Unreal Adventure - Chapter 9: Gramps is Back Again

Bizarre clouds billowed by in the sky, as if in a hurry.

During an anti-drug operation in the city of Gongzhou three years ago, a chain explosion had gone off on site due to a mis-judgement made by the Commander-in-Chief Jiang Ting, and caused the anti-drug detachment team to suffer great casualties as a result. Three years now, Jiang Ting, who was supposed to have already been killed in the line of duty with not even a body left to bury—miraculously woke up from a coma.

His heroic soul had never been at peace. He returned from Hell back to the living, to give everything he had to bring the bloody and bizarre truth back to light.

- Description from Novelupdates

Li Qingming: “Uncle Master, lend me your Purple Gold Eight Trigram Furnace to study alchemy!”Taishang Laojun: “...”Li Qingming: “Master, lend me your Pangu Banner!”Yuanshi Tianzun: “...”Li Qingming: “Uncle Master, lend me your Zhou Xian Sword Array for research!”Tongtian Jiaozhu: “...”Sanqing: “Qingmingzi, return my Eight Trigram Furnace (Pangu Banner, Zhou Xian Four Swords and Formation Diagram)...”Li Qingming: “Waga ga, let me study for a million years, then I'll return them to you!”

Noir, third son of a “beggar noble,” lost his job and was at a loss, but fortune struck just as he was contemplating becoming an adventurer.

“Want to know the meaning of life? Want to live… a real life?” The world changes when you click YES. In God’s dimension, you have to keep getting stronger, keep evolving to survive one horror movie after another. Do you kill everyone in your way to reach the end as a lone king? Or fight along with your comrades and survive through the support of friends? Everything was just for staying alive. Until you find the secret of God’s dimension. Who is the real enemy?