(C80) [Kouzaka-san, Makino Jimusho] SISTERS - Kakusareta Kioku, Natsu no Owaranai Hi (SISTERS -Natsu no Saigo no Hi-) [English] {doujin-moe.us, Fuwafuwaru}
[Taki Re-ki, Onikubo Hirohisa] Haha to Ko no Kanbi na Choukyou Kouza
(C83) [Kouzaka-san to Makino Jimusho (Kouzaka Kouhei)] SISTERS ～Natsu no Gensou no Hi ～ (Sisters ~Natsu no Saigo no Hi~)
(C80) [Kouzaka-san to Makino Jimusho] SISTERS -Natsu no Owaranai Hi- (SISTERS -Natsu no Saigo no Hi-)
[Onikubo Hirohisa, Taki Re-ki] Haha to Ko no Kanbi na Choukyou Kouza 2
(Panzer Vor! 12) [ahAha (ahAha)] Erika to Gyakuten Nishizumi Shimai (Girls und Panzer)
[Ahaha to Lyrical Illust Seisakuchuu (Ahaha)] refrain (Mahou Shoujo Lyrical Nanoha) [English] [NanoFate]
[Ahaha to Lyrical Illust Seisakuchuu] refrain (Mahou Shoujo Lyrical Nanoha)
(C83) [Kouzaka-san to Makino Jimusho (Kouzaka Kouhei, Taki Minashika)] SISTERS -Natsu no Saigo no Hi- ART WORK (SISTERS -Natsu no Saigo no Hi-)
(C84) [Kouzaka-san to Makino Jimusho] SISTERS -Natsu no Haruka no Hi- + Extra Book (SISTERS -Natsu no Saigo no Hi-)
