- Name: Ershin
- Japanese version name: MASTER
- Race: Armor (actually Endless/Dragon)
- Height: 129.3cm
- Weight: 129.3kg
- Voice actor in game: Inuyama Inuko
Ershin (Japanese version: MASTER) is a living suit of armor with odd behaviors. She seems to speaks of herself in 3rd person, but in reality the soul of the Endless Deis, who has been summoned the wrong way and doesn't possess a real body, has been put into it and the armor came to life.
