Original (by ZUN):暗闇の風穴The Dark BlowholeSubterranean Animism Stage 1 ThemeArrangement: Yuma Mizonokuchi (Innocent Key)Vocals: Ai OhseraCircle: セブンスヘブンMAXION (Seventh-Heaven Maxion)HP: http://shm.jpn.org/Album: FirstAngriffCatalogue Number: SHM-0025Released at 博麗神社例大祭7. (Hakurei Jinja Reitaisai 7)