Studio details
| Name | Operetta Due |
| Alias | オペレッタ デュエ |
| Lang | 
Japanese |
Related studios
| Parent brands | Heterodoxy Operetta Due |
More information (External pages)
| Other links | VNDB Profile VNStat |
| Name | Operetta Due |
| Alias | オペレッタ デュエ |
| Lang |
Japanese |
| Parent brands | Heterodoxy Operetta Due |
| Other links | VNDB Profile VNStat |