Eugene, who comes from a famous swordsman family, has unparalleled defensive power, but is branded a "deficient swordsman" because he has no offensive power. He decided to leave the country and enter the Magic Academy, the highest institution in the mainland. While studying in the academy, facing the sealed prison where mythical creatures were ready to move, Eugene was sent to the deepest part as the only talent unaffected by its miasma.
Even the battle-hardened great magicians can only kneel down in the middle of the prison. What is sealed in the deepest part is──the legendary demon king Alinis who once dominated the continent. Eugene, who reached her side easily, seems to be the only being who can make a contract with the Demon King...! ?
This is a fantasy story from another world where a failed swordsman who masters the power of the Demon King becomes the strongest swordsman!
Come on≡ω≡