(C69) [Luciferhood (Uchoten)] Haru no Asa Zetsubou to Shisu. (Sayonara Zetsubou Sensei)
[Avellcain] Inochi Midikashi Zetsubou Seyo Omote (Sayonara Zetsubou Sensei)
(C74) [Gravi-dan, Homuraya (Kobayashi Tetsuya, Suzunoya Wataru)] Kobushi Abiru Zetsubou Nisshi (Sayonara Zetsubou Sensei)
(C76) [Uchuusen 600gou (Ez6)] Sayonara Zetsubou Shoujotai (Sayonara Zetsubou Sensei) [English] ==Strange Companions==
[Luna Sensei Project (836)] Luna Sensei Project Doujinshi Rinji Zoukan Gou (Ikenai! Luna Sensei) [Digital]
(SC37) [YLANG-YLANG (Ichie Ryouko)] Zetsubou Switch (Sayonara Zetsubou Sensei)
(C73) [GT Wanko (Miura Iota)] Sayonara Nikubou Sensei (Sayonara Zetsubou Sensei)
[PH (Tam)] Konnichiwa Positive Sensei (Sayonara Zetsubou Sensei)
(CT11) [Daitoutaku (Nabeshima Mike)] Ryoujoku Fuura Kafuka no Zetsubou (Sayonara Zetsubou Sensei) [English] [Kamikakushi]