When Demon Queen Echidna begins her invasion of the human realm, the people turn to the hero Leo Demonheart to protect them. Blessed with insurmountable power, Leo easily repels Echidna's army, thereby saving the world. But instead of gratitude or admiration, Leo is met with disdain and scorn from his fellow humans, who fear his overwhelming strength and believe that it may eventually cause humanity's demise.
Banished from the kingdom he once called home, Leo wanders aimlessly throughout the land until, one day, he hears rumors of Echidna's efforts to rebuild her army. Hoping that demonkind might accept him as an ally, he returns to the demon queen's castle and offers Echidna his help.
Naturally, Echidna immediately rejects him. Still, not all hope is lost, as Leo manages to convince Echidna's four generals to let him secretly work under their supervision. Donning the identity of a masked dark knight named Onyx, Leo solves the demon army's problems one by one—gradually improving the quality of life around the castle. Above all else, however, Leo wants to accomplish one goal: to learn why Echidna started the war in the first place.+ More
Recommended for you
Silver Spoon 2nd Season
TV
24m
Fighting Spirit: Champion Road
Special
90m
Ghost in the Shell
Movie
82m
Black Butler: Book of the Atlantic
Movie
100m
Made in Abyss Movie 2: Wandering Twilight
Movie
105m
Major S1
TV
25m
Spice and Wolf
TV
24m
Tokyo Godfathers
Movie
92m
Nodame Cantabile: Finale
TV
22m
Millennium Actress
Movie
86m
Toradora!
TV
24m
Tomorrow's Joe
TV
25m
Initial D First Stage
TV
25m
