The Seven Deadly Sins: I opened a magic society

Story of: The Seven Deadly Sins: I opened a magic society

Everyone knows that the Demon God King has two sons, but they don't know that he actually has a third son - Liu Xia, a human born from the Demon God Clan.The Demon King never mentioned it to anyone, not even his other two sons, because of his shame.The Demon King thought that Liu Xia would be killed by time, but never thought that he was a time traveler, so after the end of the Holy War, an organization called the Magic Association was born.