Sanae Challenge!! [崎森ダン] さなえ・ちゃれんじ!! (COMIC 夢幻転生 2018年5月号) [英訳] [DL版]

[Nanairo Otogizoushi (Miyase Mahiro)] SANAEmotion + Sanaemo (Touhou Project) [Digital]

(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki

(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)

(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]

(C65) [kodomo challenge (Various)] Shukudai ga Owaranai

[Mikeke] Hatena Manga - Semete Yacchae! (Challenge First-Year-Student)

[Kurokoshi You] Challenge Week (COMIC Megastore 2010-07) [English] {doujin-moe.us}

(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi

(SC40) [Delayder (Makinon TM)] Yousei-san no?! Himitsu no Bouken no Tobira Preview ver (Challenge First-Year-Student)

(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (various)] Hatena? Challenge! (Challenge First-Year-Student)