After Reincarnation, He Gained the Power to Control Dimensions

The year is 4055, a mysterious era. Have you ever wondered if everything might be changing? Animals could evolve into terrifying monsters, while invading species from beyond the universe harbor unknown schemes. People must face not only these creatures, but also invasions by other nations! Perhaps every day on Earth follows the same pattern: scorching heat by day and bitter cold at night, forcing people to live beneath umbrellas, unable to withstand the sun and the cold at once! Perhaps humans have also given rise to people with extraordinary abilities, who use fantastic powers and wear mechs to outwit and battle their enemies! Perhaps the underworld has already advanced far beyond us: towering buildings, crystal roads, flying cars, and robot traffic officers. Yet this very underworld is destroyed overnight by the arrival of one man. Behind a series of events that seem perfectly logical lies a vast conspiracy. Why can people no longer withstand the sun’s scorching heat? Why was the underworld destroyed? What is the true scheme of the invading species? A friendly warning: do you think every character is really who they appear to be? For the fainthearted, beware: when the rules descend, do not die, or you will enter the mysterious underworld and witness the source of all things uncanny...