Bleach: Thousand-Year Blood War - The Calamity, the final cour closing out the Bleach anime's Thousand-Year Blood War adaptation, has officially revealed its opening theme "I-BULL" performed by singer jo0ji and its ending theme "Rasen" (Spiral) performed by 9Lana, along with the accompanying theme videos.
"I-BULL" marks a new J-rock direction for jo0ji, while "Rasen" is 9Lana's first outing in a straightforward rock sound backed by sweeping strings. The Calamity, the fourth and final cour of Thousand-Year Blood War, began airing in Japan on July 25, 2026, and is streaming internationally on Disney+ and Hulu, produced by studio Pierrot.
This cour closes out Thousand-Year Blood War after more than a decade of fans waiting for a complete adaptation of Tite Kubo's final arc. Revealing the OP and ED ahead of the premiere is a familiar promotional beat, and it also hints at the somber tone of the closing arc.
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Source: Anime News Network.