Bleach: Omniverse Volume I is the first story in the alternative timeline of Bleach: Ultimate Alien by Bigby the Big Bad Wolf. It was completed on July 18, 2013, and stands at 12 main chapters, a prologue, and an epilogue. A sequel was released on August 14, 2013.
"An alternate version of Bleach: Ultimate Alien. What if Ben's universe was separate from Ichigo's universe? And what if Eon happened to arrive in Ichigo's universe and teamed up with Aizen? The answer: a situation that calls for a hero and one who protects."
- Prologue. Karakura Town
- Chapter 1. Aliens, Arrancar, and Shinigami
- Chapter 2. Grimmjow Jaegerjaquez
- Chapter 3. The Vizards
- Chapter 4. Every Move We Make
- Chapter 5. War Games
- Chapter 6. Blood Mantis
- Chapter 7. Tres Bestias
- Chapter 8. Bones, Sharks, and Wolves
- Chapter 9. Shock of the Queen
- Chapter 10. Inferno
- Chapter 11. Endgame
- Epilogue. Homeward Bound