After the dissolution of the Blue Clan SCEPTER 4, the Red Clan HOMRA rises to prominence in the underworld. Struggling to control his formidable power, the Red King Mikoto Suoh teeters on the edge of instability. As fate would have it, Reisi Munakata is anointed as the new Blue King by the mystical Dresden Slate. Embracing his destiny, Munakata revitalizes SCEPTER 4, aiming to restore order. Setting his sights on HOMRA and its unpredictable leader, Mikoto Suoh, Munakata perceives them as a global threat. When these two monarchs finally collide, a fresh chapter unfolds in the epic saga of the seven kings.