From what I understand, the incense did not alter her mind. Remember, her necklace was given to her by the monk's second, female disciple? That was likely an older version of herself. So, since she chose to remain in the capital, that older version of herself disappeared, and with it the necklace it could've given, as well as the memories of it.Lmao. What a terrible Buddhist monk. Kills a butterfly like it's nothing (thought Buddhists were against killing any creature), he wants to marry a preteen, and to top it all off, then he messes with the timeline by drugging her using mind-altering incense to make her lose her memories.
Nah, I'm pretty sure this is all supposed to be time shenanigans; after all, the pendant came from her future self, but if her master abandons her here, she will never be that person, so she will never go to the past to give her young self the pendant and push her to follow En-no-Ozuno.Uh, well
Memory cleaning works well as long as it accounts for all the holes it causes
I wonder where and who will be hit with a cognitive dissonance first