My Imaginary Friend

One of those (im)memorable characters of Touhou would be Koishi Komeiji, who has the ability to manipulate the unconcious of everyone and take actions unconsciously, the really known "imaginary friend" to kids, kids that forget about her when they grow up, and she has grown tired of this, i mean, of course who wouldn't be tired of being forgot over and over right? but what would happen if she fell in love? if she fell in love with someone... someone, who is immune to amnesia and similar things? someone... who will remember her even after growing up?

yes, it's a Koishi Komeiji x Reader story, also i don't own Touhou nor the images in the content