| Ruler | Kingdom | Era |
|---|---|---|
| Mr. Ruthless Slayer | The Legion | 27 |
| Mr. Ruthless Slayer | Cease To Exist | 28 |
| Mr. Ruthless Slayer | The Legion | 28 |
| Mr. Ruthless Slayer | Music | 29 |
| Mr. Ruthless Slayer | Cease To Exist | 29 |
| Mr. Ruthless Slayer | Zeon | 30 |
| Mr. Ruthless Slayer | Canis Exercitus | 47 |
| Mr. Ruthless Slayer | Kingdom of the Fallen | 47 |
| Mr. Ruthless Slayer | Canis Exercitus | 47 |
| Mr. Ruthless Slayer | Shinobi Empire | 48 |