Series: Touhou - 蝶 (t-hou)

Artist: t-hou/molatofu
Pixiv (original) Gallery: https://www.pixiv.net/en/artworks/95683684 (link defunct)
E-hentai Gallery: https://e-hentai.org/g/2748690/b8ef90aaba/?p=4 (NSFW) (Pages 182-196)