The World's Most Dangerous Prisoners

The magic continent is filled with magic of various elements, including creation, treatment, enhancement, recovery, teleportation, attack, elements, etc... However, in the magic continent, in a sea area, there is a building similar to an ancient castle. It is the first prison in the continent and no one has been able to escape since its establishment. Not only is there ferocious sea water, but there are also countless sixth-level magic sharks. And in the deepest part of this prison, in a dark room, there was a man imprisoned all over by the most powerful magical iron chain in the world. This man was tall and burly with muscles that looked scary. He had closed his eyes for five years and suddenly opened them... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.