The Spider at the Top of the World

Noah Linsey wakes up in a world where humans form bonds with magical beasts, and he's one of the beasts.He is a lowly F-rank spider, promptly abandoned by the girl who contracted him when he proved too weak to be worth keeping. Left for dead, something inside him activates. A system that lets him devour other creatures and evolve without limit. Noah crawls out of that near-death experience and never stops climbing. Shadow Lair, demon beasts, Overlords, all fall before him or kneel to him. When foreign species begin invading and ancient mythological monsters descend on his homeland, Noah has become something that rewrites the definition of power. No one crosses his country and walks away.