[Nagisa no Yoko (Shiraishi Nagisa)] Ero Doujinshi ni Zetsubou Shita! (Sayonara Zetsubou Sensei) [Digital]
(C69) [Luciferhood (Uchoten)] Haru no Asa Zetsubou to Shisu. (Sayonara Zetsubou Sensei)
[PH (Tam)] Konnichiwa Positive Sensei (Sayonara Zetsubou Sensei)
(CT11) [Daitoutaku (Nabeshima Mike)] Ryoujoku Fuura Kafuka no Zetsubou (Sayonara Zetsubou Sensei)
(C74) [CLOSET CHILD (Asaki Yuzuno ; Konoe Ototsugu)] Ware Zetsubou Sukoni Ware Zairi (Sayonara Zetsubou Sensei) [English]
[Luna Sensei Project (836)] Luna Sensei Project Doujinshi Vol.1 (Ikenai! Luna Sensei) [Digital]
Onegai Zetsubou Sensei
(SC37) [YLANG-YLANG (Ichie Ryouko)] Zetsubou Switch (Sayonara Zetsubou Sensei)
(C76) [Uchuusen 600gou (Ez6)] Sayonara Zetsubou Shoujotai (Sayonara Zetsubou Sensei) [English] ==Strange Companions==
(C77) [Iranshiki (Ichie Ryouko, Kojima Aya, Dogezaemon)] Zoku Zetsubou Big Bang (Sayonara Zetsubou Sensei)