As Mikado Ryuugamine continues his quest to cleanse the Dollars from within, Masaomi Kida endeavors to reunite the Yellow Scarves in a bid to save his friend. Unbeknownst to them, a formidable new player is poised to join the power struggle, a figure intimately linked to their comrade Anri Sonohara. Meanwhile, a gathering at Shinra Kishitani's apartment forebodes a life-altering event that will plunge Ikebukuro into chaos. The discovery of Celty's missing head in public ignites widespread panic, orchestrated by the cunning Kasane Kujiragi. With tranquility shattered, Ikebukuro hurtles towards a climactic showdown, marking the thrilling culmination of its residents' tumultuous journey.