At the conclusion of season two, Yuuri overcomes Shinou. Yet because Shinou had been defeated, both Yuuri and Murata were barred from entering the Shin Makoku. Nevertheless, by vanquishing him, Yuuri"s strength eclipsed Shinou"s, allowing him to rely on his own power to reenter the Shin Makoku.
Following the coronation at sixteen, Yuuri gradually realizes how much transpired during his absence. The ten court officials had chosen Wolfram as the forthcoming Maou, but with Yuuri"s return to his throne, a noble objected to his reinstatement.
Moreover, an ancient clandestine order that endangers the harmony of humans and Mazoku has emerged, sparking a succession conflict that leaves the nobles uncertain about who truly holds the title of Maou. Rumors spread across the realm as factions argue over rites. Some claim only a bloodline descent qualifies, others say demonstrated power and virtue suffice. Amid this turmoil, Yuuri must navigate intrigue while safeguarding the peace he restored.