A Multi-Character Anime Fight in the Infinity Castle

Create a 15-second, 16:9, high-end 2D Japanese anime battle sequence with synchronized stereo audio inside the Infinity Castle. Sharp hand-drawn linework, crisp cel shading, high-contrast lighting, deep blacks, crimson Muzan effects, electric-blue water, vivid pink blade trails, white impact flashes, readable fast choreography, fluid body weight, environmental destruction. No 3D CGI, photorealism, subtitles, UI or extra characters. Picture 1 = Muzan Kibutsuji. Keep exact face, white hair, red eyes, pale muscular body, crimson markings and flesh-whip anatomy. Picture 2 = Tanjiro Kamado. Keep exact face, forehead scar, hanafuda earrings, green-black checkered haori and Nichirin sword. Picture 3 = Giyu Tomioka. Keep exact face, dark hair, split-pattern haori and Nichirin sword. Picture 4 = Obanai Iguro. Keep exact face, bandaged mouth, striped haori, Nichirin sword and Kaburamaru. Picture 5 = Mitsuri Kanroji. Keep exact face, pink-green braided hair, white haori and flexible Nichirin sword. Maintain identity, clothing and weapon continuity throughout. SCENE 1 — [0s→3s] Damaged Infinity Castle chamber, tatami floor, broken beams, shoji walls, dust. Muzan stands center; Tanjiro front-left, Giyu rear-right, Obanai opposite side. Low wide push toward Muzan. Muzan suddenly fires multiple flesh whips. One sweeps close past camera and destroys a wooden pillar; another smashes the tatami floor. Tanjiro dashes away, Giyu sidesteps, Obanai bends beneath a whip. Audio: castle creaks, low battle drone, flesh-whip cracks, heavy whooshes, wood splintering. SCENE 2 — [3s→6s] Obanai immediately counterattacks from the right with a winding serpent-like sword path and narrow silver slash trail. Giyu attacks simultaneously from the opposite side using Water Breathing, Fourth Form: Striking Tide, with a strong hand-drawn electric-blue water arc. Use one fast curved orbit around Muzan. Muzan twists and launches two flesh whips to intercept both swords. Brief pure-white impact frame on collision, then sparks, blue water fragments and crimson whip trails. Audio: sword whistles, subtle hiss, rushing water, whip cracks, heavy impact hit. SCENE 3 — [6s→9s] Tanjiro bursts through dust and sprints directly at Muzan. Low side-tracking camera. Tanjiro plants a foot on a broken beam, launches forward and swings diagonally at Muzan. Muzan fires three crossing flesh whips: Tanjiro blocks the first, ducks beneath the second, and the third grazes his shoulder and tears his haori, but he keeps attacking. Brief extreme close-up of Muzan’s red eye reflecting Tanjiro, then return to the fight. Audio: footsteps, cloth snap, breathing, blade whistle, three directional whip cracks, sword impact, cloth tear. SCENE 4 — [9s→12s] The Infinity Castle physically destabilizes: floor tilts, walls shift, beams crack, debris slides and falls. Use a wide canted shot. Mitsuri enters from above already attacking. Her flexible Nichirin sword sweeps in a large vivid-pink elliptical arc. The blade knocks one flesh whip upward, redirects another into a wall and deflects a third while staying visibly connected to her hand. Briefly follow the blade, then return to a wide composition. Audio: structural groan, cracking wood, falling debris, metallic blade-whip sound, multiple blade/flesh impacts. SCENE 5 — [12s→15s] Muzan lands at the center of the fractured chamber, briefly lowers his stance, then releases a violent irregular radial burst of flesh whips. At the same time: Tanjiro attacks from front-left with a rising orange-red sword arc. Giyu attacks from rear-right with a large blue water slash. Obanai attacks low from right with a serpentine sword path. Mitsuri attacks from range, her flexible pink blade curving through the foreground toward Muzan. Use one rapid controlled circular camera move tightening around Muzan.