The world resets everyone to level one, and a kid who barely scraped to level three gets handed a system that nobody else has. That gap between "I was always weak" and "now I'm the only one who can actually grow" is the entire tension of the show. Every upgrade feels stolen, every level earned against invisible odds, because Ye Hao knows exactly how far behind everyone started him.

In 2063, a sudden crisis pushes Earth into a gaming era, and all of humanity falls under the sway of mysterious forces. Every person is reset to a level-one beginner in a harsh world where the strong prey on the weak. Ye Hao, a high school student, manages to reach only level three. On the verge of death, he accidentally activates an upgrade system tied to a legendary king's account. With this new power, he sets out to turn things around for his family and battle mighty monsters from another world, all while a plot that threatens to destroy the world looms. The ONA mixes action, fantasy, mystery and sci-fi.