The Horror Recovery Begins with Being Struck by Lightning.

In 2745, global warming caused icebergs to melt, and an unprecedented flood caught mankind by surprise... In 2793, a cold air swept across the world, freezing everything. Humanity was forced to end the state system and form alliances and tribes... In 2795, a giant beast appeared in the territory of Yandi tribe, and the military went into battle... The beast died in 2795, and the Yandi tribe suffered heavy casualties... In 2798, human explorers from the Yandi tribe discovered a stone emitting light in the frozen area. This stone was later named the Stone of Hope... In 2800, Y, M, R, H, and the alliance attacked the Yan Emperor tribe, and the Yan people were beaten and retreated. When the captain of the transportation team responsible for transporting the Stone of Hope accidentally touched the Hope, something changed, and the world's first fire-based superpower appeared... In 2800, with the addition of fire power users, the Yandi tribe turned its defensive war into a counterattack. Later, many countries signed indemnity regulations, and the war came to an end... In 2810, more and more Hope Stones appeared, which meant that people with superpowers were no longer rare... The era of 2810 was officially named the Era of Terror Resurrection... In 2811, more and more crimes were committed by people with superpowers. In order to facilitate management, the tribal leaders established superpower management centers in various parts of the Yandi tribe. In order to visualize the combat power of superpowers, they decided to use letters to determine the grades, with F being the lowest and S being the highest...