Series: Touhou - The Mutual Smelling Match Manga (Chahashiraozen)

Artist: Chahashiraozen
Original title: 嗅ぎ合いっこする漫画
Pairing: Kaguya x Mokou (TeruMoko)

When Kaguya and Mokou get together there's the scent of...SOMETHING in the air...
Sequel of Mokou visits Kaguya.