If you like the idea of Byakuren and Miko acting like father figures to Kokoro, read this:
http://exhentai.org/g/767522/0f458c0693/If you want more of that, plus Koishi x Kokoro, read this:
http://exhentai.org/g/765280/63ee7c3ed2/This guy has done quite a bit of touhou non-h doujins, most of them pretty good.
