| Staz is a vampire from the surreal "Demon World", and Fuyumi, an ordinary girl, accidentally wanders into the Demon World through a portal. Subsequently after meeting each other, Fuyumi is killed by a carnivorous plant and turned into a ghost, causing Staz to take responsibility and pledge to help bring her back to life. |
| Name | Character | Episodes |
|---|---|---|
| Ryohei Kimura | Blood D. Braz | 10 |
| Ryohei Kimura | Braz D. Blood (voice) | 8 |
| Chiwa Saito | Mamejirou (voice) | 4 |
| Tetsu Inada | Franken Stein (voice) | 4 |
| Chiwa Saito | Mamajirou (voice) | 3 |
| Yuki Kaji | Nell Hydra (voice) | 3 |
| Kenichirou Matsuda | Oniqlo Shopkeeper (voice) | 3 |
| Koji Yusa | Papladon Akim (voice) | 2 |
| Kotono Mitsuishi | Neyn Hydra (voice) | 2 |
| Daisuke Kishio | Goyle (voice) | 2 |
| Keiji Fujiwara | Heads Hydra (voice) | 1 |
| Akira Ishida | Roy (voice) | 1 |
| Norio Wakamoto | Wolf Daddy (voice) | 1 |