Popularity: 21
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| Fourteen-year-old Iruma Suzuki has just been abandoned and sold to a demon by his irresponsible parents! Surprisingly, the next thing he knows he's living with the demon who has adopted him as his new grandson and has been transferred into a school in the Netherworld where his new demon grandfather works as the principal. Thus begins the cowardly Iruma-kun's extraordinary school life among the otherworldly as he faces his true self, takes on challenges, and rises to become someone great. | 
| Name | Character | Episodes | 
|---|---|---|
| Saori Hayami | Ameri Azazel (voice) | 66 | 
| Nao Toyama | Keroli Crocell / Evidol Kuromu (voice) | 66 | 
| Ayumu Murase | Iruma Suzuki (voice) | 66 | 
| Takaya Kuroda | Sullivan (voice) | 66 | 
| Daisuke Ono | Naberius Callego (voice) | 66 | 
| Ayaka Asai | Valac Clara (voice) | 66 | 
| Ryohei Kimura | Asmodeus Alice (voice) | 66 | 
| Tetsuya Kakihara | Jazz M. Andro (voice) | 66 | 
| Yoshitaka Yamaya | Lied Shax (voice) | 66 |