[December-Girl] Confession of a Mask [English] [SMDC]
[December-Girl (Juunigatsu Shoujo)] Kamen no Kokuhaku [Digital]
Nekojishi December 2017 Package Reward
(C65) [Takotsuboya (TK)] Tenina! - No More Angel! (December When There Is No Angel)
(C82) [December-Girl (Juunigatsu Shoujo)] SWEET HEART
[Zattou Keshiki (10mo)] TWIN TAIL CARNIVAL (December When There Is No Angel)
Nekojishi February 2018 Package Reward + Extras
(CR34) [BlueMage (Aoi Manabu)] Fuka Fuka. (December When There Is No Angel)
[December-Girl] SWEET HEART
[Leaf] Tenshi no Inai Juunigatsu - December when there is no angel (artbook)
