9 KAMITSUBAKI STUDIO’s affiliated virtual singers and singer-songwriters, as well as various musical isotopes derived from virtual singers, will get together for the festival. Additionally, many guests from KAMITSUBAKI STUDIO's sister label, SINSEKAI STUDIO, will join them. "KAMITSUBAKI FES '23" is an event that those affiliated artists from both virtual and real worlds creates together.
| Actor | Role |
|---|---|
 HarusaruhiSelf | Self |
 IsekaijouchoSelf | Self |
 KokoSelf | Self |
 CIELSelf | Self |
 V.W.P -Virtual Witch Phenomenon-self | self |