(C76) [Studio★Parm (Kotobuki Utage)] PM21 Inran! (K-ON!)

(CR33) [Kotobuki Chop, PIGGSTAR (Kaeru Jiro, Nagoya Shachihachi, Kotobuki Kazuki)] Ichigo Hankachou (Kari) (Ichigo 100%)

(Jui~cy~) [rabbit syndrome (rabbit)] ver.G (Otogi-Jushi Akazukin)

(Puniket 15) [A-A (Anohito)] Akazukin-bon Soushuuhen (Otogi-Jushi Akazukin)

(C71) [DAMe project (Hironobu)] Kyou no Akazukin Kaiteiban (Otogi-Jushi Akazukin)

[Kotobukiya (kotobuki)] Makarasan to issho! (Tokyo Afterschool Summoners) [Digital]

[Kotobuki Kazuki] Hounyuu no Ryoujokuteki na Nichijou [Chinese]

(C47) [Ayashii H de PON (Kazuki Kaho)] TWINKLE☆ TWINKLE☆CHANCE! (Akazukin Cha Cha)

(C61) [Kotobuki Chop (Kotobuki Kazuki)] D.O.D Destruction of Desire (Dead or Alive)

[Tsukuru no Mori Kabushikigaisha (Various)] Monster Musume no Iru Nichijou -Everyday Life with Monster Girls- ANOTHER CREATOR VISUAL FAN BOOK (Monster Musume no Iru Nichijou)