I'm Standing on a Million Lives S02 E12 On a Million Lives

Glenda has figured out the identity of the Dragon Bishop who's been secretly at work in the area. With her identity exposed, the Dragon Bishop confesses that she was behind everything that's happened since they began the current quest, and explains that she approached Yotsuya's party while searching for a hidden village in order to complete her ritual. Thus begins the battle between the Dragon Bishop and the party of heroes.