| Name | Locations Seen |
|---|---|
| Xain | Fire Path |
It is believed that Xain is a Sim-Seru considering the fact that the Seru speaks after being defeated from Xain and also is only for Evil. Xain was ordered by Dohati to destroy Underground Octam. It is believed that the Sim-Seru is actually possessing a regular Seru instead of a human, unlike many of the other Sim-Seru.