ngl i'm just glad that a character finally recognizes another even with part of their face still concealed. there's too many scenes where someone goes "whoever could that masked stranger with the same hair, complexion, build, and voice as another character that i know be???'
Well i guess it was the 4th disciple like i thought. Maybe the 5th disciple (or whatever number he was) was the reincarnation of the demon king or something hummmm.