His Name Is Hero. She's The King Of The Demons. Together, They're Going To Save The World. When, after 15 years of warfare, the warrior known as Hero finally storms the castle of the Demon King, he's shocked to find her waiting for him with an unexpected proposal. With the demons defeated and without a common enemy, the various human factions are certain to resume their wars against each other, but she has a plan to end the war and ensure lasting prosperity for both sides. To achieve it, however, she'll need a collaborator, and Hero is the one human she trusts! The traditional rules of Good and Evil are flipped on their heads as the Hero and the ultimate bad girl join forces in MAOYU - ARCHENEMY & HERO!