// I think Kaguya mentioned her
> This technology must be god-like in terms of power if it can make not one but multiple towns like that
> "So you're only a projection? Have you ever thought of coming here permanently? Seems to me that magic fascinates you more that anything, especially since you have an ability that you didn't have to learn, just like everyone here."
> "Why don't you come along with us, we're trying to find who's responsible so I'm sure we'll run into other people investigating"
// "Fujiwara no Mokou" we have not met or known(though team-mates could know a bit) but she was mentioned at Eientei firstly by Eirin,interrupted by Kaguya,and then explained by Alice to be a possible source of Knowledge about Gensokyo's History (1st would be Yukari ,as it was spoken,but also Ran and Kasen would be fit ); Kaguya was remarking her displeasure at hearing about her //.
// Not that any of the characters ,Rumia's Group&Relations,know this but she was not "at her usual place" because Keine sought&brought her out as main aid with the fire-attack aftermath at the Human Village&Security //.
>" And besides I do remember ,though someone in my group could know better, the name "Fujwara no Mokou",even if Princess Kaguya disliked it,while we were at Eiente in The Bamboo Forest of the Lost,so you could have bigger chances to meet her ,in addition to traveling,getting-to-know,helping in incident resolving,in traveling with us for how long you like or need ; especially so if you are not finding her at her usual place and with Gensokyo half-troubled state"
> "Aaah,if it helps any, the Scarlet Mansion or Scarlet Devil Mansion is by the Misty Lake and (unless untrue and so not to mention)fairly close to Youkai Mountain"
> "But hey,Miss Sumireko,you were saying you have recently encountered and deal with Heretic Makaians in Gensokyo ? Do you remember the place ?"