"Locke transmigrated into an era where everyone had Battle Beasts. Daemons were rampant and humans were forced to build walls around their dwellings while depending on Beastmasters to keep those monsters at bay. It was time for academies to open their enrollments and Locke only had a small snake that everyone claimed was useless! ""A snake? Isn't this just a normal snake? What a useless Battle Beast."" ""What potential can a snake have? Even if it evolves into a two-headed snake that's still only Level 1 strength. You might as well continue living like any other normal folk."" ""Who are you kidding? What makes you think you have what it takes to enter a Beastmaster University?"" Locke stayed calm as countless classmates and teachers mocked and made fun of him while he turned to his System's interface. ""All Beasts Hidden Evolution Paths!"" From a Two-headed snake to a Fire-and-Ice Two-headed snake... Then to a Demonic Shadow Snake... a Bright Serpent... Before finally, evolving into Medusa..."