ES/Silver Tower/ Ghost Path 2 tl here:
Should I translate 夜魔 as Night Demon or Succubus? The monsters it's referring to are clearly succubi, but I don't know if it would be more accurate to call them that since サキュバス isn't used. However, in the game image files, the battler is called Succubus, so...
Well, I was wondering if the terminology evolved in-universe as time passed.