Series: Touhou - At Least Wear Them for Three Days! (Hachi (Chihagura))

Artist: Hachi (Chihagura)
Original title: せめて3日は履き続けろ! (Semete Mikka wa Hakitsudzukero!)
Pairing: Kaguya x Mokou (TeruMoko)

A doujin by Chihagura revolving around Eirin getting Kaguya to wear see-through panties.