One Piece: Don't Worry, I'm a Doctor - Chapter 76 - : You… Want to Touch Me?

When he woke up, Zhou Sui became a low-level Qi refiner in the world of immortality. Fortunately, he obtained the most precious Gu god bowl, which can refine various Gu insects.

Refining the Spring and Autumn Gu can prolong life and make you immortal.

The refining golden cicada Gu can give birth to dead people, flesh and white bones.

Refining the Dragon Elephant Gu to gain the power of the Dragon Elephant, the body of the Dragon Elephant, and the indestructibility of the King Kong

But the Gu he refined for the first time was the Infatuation Gu.

From then on, he discovered a bright road to cultivation.

The years change, the mountains and rivers change, but I am the eternal Zhou family.

- Description from novelbuddy

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.

Solver Keter, one of the Five Lunatics of Lawless City, regresses to when he was the illegitimate son of a doomed archery family.“If I regressed and couldn’t even save my family, I might as well go kill myself.”For my family? No, for my freedom!

“On that day, Zach Harper died-” Or at least that was how it was supposed to be. I died. But there was good news, and bad news. The good news; I was reincarnated! Transmigrated into the World of Aethoria! Holy fuck, miracles do happen! But the bad news was, “Huh? What’s this?” ... [DING!] A New Quest has been issued:- Type:- SURVIVAL Name:- Quest To Becoming Stronger: Description: The {Great Calamity} is coming...Get stronger and survive. Duration-: ... Reward:- ... Penalty:- Death, ??? ] ... I had to survive.