"Welcome to pictur DESPAIR-esque Sirius Astronomical Observatory"
(Volume 1)
Kyoko and Yui, also with the Rose In Vitro
(Volume 1)
Detective Library Cards
(Volume 1)
DSC Explanation
(Volume 1)
"Welcome to Normans Hotel, we'll answer all your desires DESPAIR."
(Volume 2)
Normans Hotel Floor Details
(Volume 2)
Yui holding Kyoko
(Volume 3)
Tōkichirō's Card
(Volume 6)