Ichiban Ushiro no Daimaou - Volume 7, Chapter 2 — Let’s Go to the Video Game World

When the night came, there was a twittering sound in his ears, and the monster in the shadows began to move restlessly. Jason’s hungry stomach began to roar, and he couldn’t help swallow his saliva. Hunger was the best spur.

Hiding in the Cold Palace and eventually becoming a Boss of Sorts. Li Mu was transported to a fantastical world and became a measly eunuch of the State of Xia. Despite having initially thought that his life would be a miserable one, he had unexpectedly acquired a check-in system.

The most domineering, arrogant and beautiful Omega in the Tarot Empire, Le Yao was arranged to marry General Xu Yao, who was known as the ruthless King of Hell.

Chen Sha came to a world of immortal martial arts and was ordered to take charge of the world’s first sect.

Before his death, the previous chief told him:

“If you don’t become the best in the world for one day, you are not allowed to go down the mountain for one day.”

So he closed himself in painstakingly, crossed the heaven gate in his body, and faced off against the ancient and modern powerhouses…

…

Many years later, Chen Sha recalled the day he went down the mountain,

From the moment he descended the mountain, he was number one in the world.

In the next ten epochs, any gods and demons have returned, immortals and Buddhas have lived in the world, ancient powers and ancient gods have appeared one after another.

No matter how the times change, he has always been No. 1 in the world and has never changed.

- Description from novelbuddy