Watch (C81) [Karukan Custard (erka)] Musou (Sayonara Zetsubou Sensei) (C81) [かるかんカスタード (えくれあ)] 霧想 (さよなら絶望先生)

[Yuugai Tosho Kikaku (Tanaka Naburu)] Sayonara Zetsubou Seito (Sayonara Zetsubou Sensei)

[Gachonerou] Zetsubou Doujin Ero (Sayonara Zetsubou Sensei) [English]

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

[Yuugai Tosho Kikaku (Tanaka Naburu)] Sayonara Zetsubou Seito (Sayonara Zetsubou Sensei)

[Uchuusen 600gou (Ez6)] Sayonara Zetsubou Shoujotai Tsugi Preview (Sayonara Zetsubou Sensei)

[Mafupoko (Hamaoka Ponta)] Chotto Dake Zetsubouko (Sayonara Zetsubou Sensei)

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

(C76) [Uchuusen 600gou (Ez6)] Sayonara Zetsubou Shoujotai (Sayonara Zetsubou Sensei)

(C76) [Uchuusen 600gou (Ez6)] Sayonara Zetsubou Shoujotai (Sayonara Zetsubou Sensei) [English] ==Strange Companions==

(C73) [GT Wanko (Miura Iota)] Sayonara Nikubou Sensei (Sayonara Zetsubou Sensei)