Eighteen years into the Spirit Tide, savage beasts run rampant and martial arts are on the rise. Lin Yan, a student at Linjiang No. 7 High School, has a blood vitality score of 178. With only ninety-three days left until the martial arts entrance exam, his biggest goal was simply to get into an ordinary martial arts university.
That is, until a practical class at a museum, where he picked up a broken saber left behind ten years ago. At that moment, he saw the dead man's final battle and gained the saber techniques and combat experience the man had left behind. From then on, old weapons everyone else overlooked became stepping stones that let him grow stronger at a rapid pace.
But what truly drives Lin Yan to investigate further is a name he finds among the traces left on the broken saber: Lin Yue, his father, who disappeared ten years ago and had long since been declared dead. Official records say Lin Yue died in a restricted zone, but Lin Yan saw with his own eyes that his father had once walked, alive, through an underground metal door that appeared in no records.
To grow stronger, and to find his father, Lin Yan takes one step after another into the wilderness, the restricted zones, and buried history. At last, he discovers the true name of the era they live in: the Ninth Era.
