The Descendant Of The King

"It took the army of four nations to just infiltrate my castle. It took you god knows how many battalions to just start this fight with me. You fought with all your bravery, and even tough all you had to face was me, you are the only ones that still breath. You call that easy?" ----------------------------------------------------------------- The Demon King was once the strongest person to roam the earth and had ruled over the entire world indirectly. He is slain by the 12 Kinghts of the Four Kingdoms, marking his first defeat and his death. This was not it at all. He was not dying this easily. He would come back, but not as they expected him to be. His ability allowed him to come back to this world once again but it was 300 years after the war in which he was slain. The existence of his once vast kingdom in no more a fear to them, demons along with humans now, in a unique way. He has became but an legend among all of them, a hated one mostly. He this time came along with making a boy his vessel and making pact with him. He decides to live peacefully now. Will he be able to?