[Kotobuki Kazuki] Sensei no Himitsu | Teacher's Secret Hentai [琴吹かづき] 先生のひみつ☆

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

[Luna Sensei Project (836)] Luna Sensei Project Doujinshi Rinji Zoukan Gou (Ikenai! Luna Sensei) [Digital]

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

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

[Luna Sensei Project (836)] Luna Sensei Project Doujinshi Vol.1 (Ikenai! Luna Sensei) [Digital]

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

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

(C78) [CARTAGRA (Shiina Kazuki, Kugami Angning)] ARCANUMS 18 Emily (Mahou Sensei Negima!)

(SC34) [Himitsu Doyoubi (Matsutaka Zon)] Kichiku 3nin Musume (Otogi-Jushi Akazukin)

(C71) [Himitsu Doyoubi (Matsutaka Zon)] Imouto Apron (Fairy Musketeers)