The end of the world is coming, and the world is falling apart. Humanity has fallen from the top of the food chain to the bottom, entering the most tragic dark age. There is betrayal by family members, darkness from friends, the cruelty of the end of the world, and the ugliness of human nature. This is hell for humans, but a dark paradise for monsters!

Even in the dark hell, there are always a few fools who firmly believe that there will be a ray of light that will one day break through the dark clouds, tear apart the darkness, and illuminate the entire world. This light is called - the light of humanity!

Welcome to Dark Paradise, this is a story about an ordinary person struggling in the doomsday!

In his previous life, when the end of the world came, he was sincere and kind, and protected everyone.

In the end, he was slandered as an anti-human evil demon, became a public enemy of the world, and was not tolerated by humans.

No one knew that the genius who once stood at the forefront of resisting the alien races in the end of the world and opened up a survival base for human survivors, finally died alone and silently in a damp and nameless cave.

When he opened his eyes again, he found himself back in time, ten years ago, the day before the end of the world!