Maoyu: Archenemy & Hero(2013)

Maoyu: Archenemy & Hero is a fantasy series set in a world torn apart by war between humans and demons. When humanity's greatest hero storms the Demon Queen's castle to defeat her, she surprises him with a proposal: an alliance. The Queen reveals that abruptly ending the war would unleash chaos—both realms would turn on themselves without a common enemy to unite against. Convinced by her logic, the hero abandons his mission and partners with the Queen instead. Together, they devise a plan to build lasting peace and prosperity for both humans and demons, working to reshape their fractured world from within.