![1boy 2girls alternate_costume animal_ears bald beard black_hair comic detached_sleeves doujinshi extra facial_hair fuukadia_(narcolepsy) greyscale hakurou_tengu hat inubashiri_momiji japanese_clothes karasu_tengu kourindou_tengu_costume long_nose monochrome multiple_girls obi partially_translated sash shameimaru_aya short_hair tengu tokin_hat touhou translated translation_request wolf_ears yamabushi_tengu rating:s score:0 post #1764803](/cdn_image/preview/7d/45/7d4547c83eb6ef12ee24a5aa70c6a55a.jpg)
Japanese title: 悠久からの追憶
Seems to be a Pixiv manga adaptation of post #1600427 (which is a doujin light novel.)
Sample of the original light novel can be read here:http://www.pixiv.net/novel/show.php?id=3186842
Series largely revolves around Aya and her relationships with Hieda no Amu and Hieda no Ashichi.
Eventually released on C86 and C87.