After Subaru and his friends fail to retake city hall, the Water Gate City of Pristella is hit by a deluge of muddy water. Though Subaru vows to turn the tide, the Witch Cult's Archbishops continue to plunge the city deeper into chaos, calling forth otherworldly beasts to sow madness and terror. With his allies scattered, Subaru bets it all on a gambit that could reverse his fortunes in one fell swoop!