Arnold is known as the "Insipid Prince" throughout the kingdom, for he has been acting as a lazy, careless prince.
Only his twin brother, Leo, and some people close to him know that Arnold in reality is a clever guy who can outsmart almost anyone.
Also he has a secret identity that even his brother don't know...he's Silver, an SS-class adventurer who can use ancient magic.
Arnold hopes to make Leo the next emperor...but the conflict for the throne seems to never end.
Gordon, a powerful general who loves wars, decided to revolt against his father, the emperor to take his place.
Now Arnold must defeat Gordon or the whole Empire will fall. And he senses that there is something odd about this whole conflict...
