SpiderGwen: I have a system?! - Chapter 178: Start of the Tour

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

The world is changing, natural disasters are coming, and the whole people will travel through the doomsday game!

Scary beasts, wild swamps, weird ruins, dangers are everywhere!

Human beings can only rely on shelters to survive and accept rounds of natural disasters!

- Description from novelbuddy

The more he got to the Comprehensive world, Beiyuan Baiqiu originally thought it was just an ordinary Comprehensive daily world.

Who would have thought that after entering high school, unusual things would happen one after another, and I would awaken myself through the simulator.

Since then, Beiyuan Baiqiu has embarked on the road of being invincible.

[Demon Slayer, Campione!, No Game No Life, Problem Children are Coming from Another World…]

- Description from novelbuddy

The master Xiuxian failed to cross the calamity, the soul came to the earth, and became a waste fiance of the school flower. The school fiancee wants to force him to remarry, the hypocrite and uncle who is greedy for money fights for his family property, one indifferent killer kills his life … Grandpa’s disease must be cured … The proud family’s family must learn martial arts with him … These problems are being cultivated Master Lin Mu is not a problem before him!

- Description from 69shu