[Yurikawa] Futago Challenge | Twin Challenge (Toshiue Kanojo Alternative) [English] [PSYN+DMD]
[Mikeke] Hatena Manga - Semete Yacchae! (Challenge First-Year-Student)
(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi
(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (various)] Hatena? Challenge! (Challenge First-Year-Student)
(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki
(C92) [Slime Kikaku (Kuriyuzu Kuryuu)] Akatsuki no Oyome-san Challenge | Akatsuki's Bride Challenge (Kantai Collection -KanColle-) [English] {Doujins.com}
(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]
(C65) [kodomo challenge (Various)] Shukudai ga Owaranai
(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)
