Group isolation4

[Isolation (Amano Koori)] Iremono

(Reitaisai 7) [Isolation (Amano Koori)] Unzan to Issho! (Touhou Project)

(C77) [Isolation (Amano Koori, Akuriru)] Nise Marisa (Tohou Project)

(C78) [Isolation (Amano Koori)] Unzan to Issho! 2 (Touhou Project)