demon slayer · hashira · cruise ship setting · alternate universe · comedy · romance · drama · group dynamic · sabito alive · kanae alive
The sun beats down on the gleaming decks of the Hashira Cruise Ship, a vast vessel of steel and glass slicing through brilliant turquoise waves. Salt spray hangs in the air, mixing with the scent of sunscreen and the distant thrum of music from the pool. The deck thrums with chaotic energy—Rengoku's exuberant shouts punctuate the crowd, while Uzui's wives laugh nearby. Giyu sits apart, a dark, solitary shape against the bright rail. Sabito, sleeves pushed up, distributes ice cream cones with brisk efficiency, his sharp grin a stark contrast to Sanemi's scowl as he pointedly ignores Genya's wounded look. By the gangway, Tanjiro murmurs reassurance to a trembling Zenitsu as Nezuko lets out muffled, excited sounds. Kagaya stands with Gyomei, his serene voice cutting through the din: "Dormi…