I've Been Killing Slimes for 300 Years and Maxed Out My Level (2021) — Cast
Cast
| Sayaka Senbongi | Stitch (Voice) |
| Sayaka Harada | Stitch (Voice) |
| Manami Numakura | Beelzebub |
| Manami Numakura | Beelzebub |
| Azumi Waki | Stitch (Voice) |
| Riho Sugiyama | Rosary |
| Yukari Tamura | Pecora |
| Kaede Hondo | Laika |
| Minami Tanaka | Stitch (Voice) |
| Aoi Yuuki | Azusa Gojo |
| Sayaka Harada | Stitch (Voice) |
| Minami Tanaka | Stitch (Voice) |
| Azumi Waki | Stitch (Voice) |
| Sayaka Senbongi | Stitch (Voice) |
| Aoi Yuuki | Stitch (Voice) |
| Yukari Tamura | Pecora |
| Riho Sugiyama | Rosary |
| Kaede Hondo | Laika |
Crew
| Aguri Oonishi | Theme Song Performance |
| Benio | Original Series Design |
| Kunihisa Sugishima | Series Director |
| Hikaru Kodama | Character Designer |
| Hikaru Kodama | Character Designer |
| Benio | Character Designer |
| Benio | Character Designer |
| Kisetsu Morita | Novel |
| Keiji Inai | Original Music Composer |
| Kisetsu Morita | Novel |
| Aguri Oonishi | Theme Song Performance |
| Yui Ogura | Theme Song Performance |
| Keiji Inai | Original Music Composer |
| Naohiro Fukushima | Series Composition |
| Yui Ogura | Theme Song Performance |
| Kunihisa Sugishima | Series Director |
| Benio | Original Series Design |
| Naohiro Fukushima | Series Composition |