Suddenly, she seemed to be in a different mood and started to change. She was entering the Irregular phase as if she was in the battle.
Didn't she say that Irregulars and Servants are ultimately the same? A lost child of the parallel universe becomes an Irregular by hoping for something from a certain world, and later becomes a Servant after associating itself with a Master, right?
I see what is going on. She must have turned into an Irregular because of that lost memory she told me about. "