When an earthquake tears through reality itself, ordinary high school students Hasami Tatsuro and Yashiki Ai find themselves thrust into a strange new world. Stranded in an unfamiliar forest, their despair is short-lived as a mysterious system awakens within them, unlocking extraordinary powers. Hasami Tatsuro gains "Level Eater"—a potent ability to consume and absorb the levels and skills of others, making them entirely his own. Yashiki Ai manifests "Valkyrie," granting her access to any offensive skill from any class without restriction or specialization requirements. Armed with these game-changing abilities and unwavering teamwork, the two unlikely heroes escape the forest and begin their journey across a fantastical realm. Follow their adventure as two ordinary teenagers discover just how extraordinary they can become.