- ↑ Chapter 20: Sea of the Ayakashi Part 1, Ushio and Tora Go to Sea
- ↑ 2.0 2.1 Chapter 25: Sea of the Ayakashi Part 6, To the Limits of the Soul
- ↑ 3.0 3.1 Chapter 291: Tora Part 2, Perspective I
- ↑ 4.0 4.1 Chapter 292: Tora Part 3, Perspective II
- ↑ Chapter 290: Tora Part 1, He Who Returned
- ↑ 6.0 6.1 6.2 6.3 The Pictorial Book of Ushio and Tora
- ↑ Chapter 313: Ushio and Tora Part 3, The Fate of Ushio and Tora
- ↑ 8.0 8.1 Chapter 228: TATARI BREAKER Part 8, DEATH FLOOR