(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)
(SC40) [Delayder (Makinon TM)] Yousei-san no?! Himitsu no Bouken no Tobira Preview ver (Challenge First-Year-Student)
[Mikeke] Hatena Manga - Semete Yacchae! (Challenge First-Year-Student)
Yoshizawa Deisui Karaoke Box | Yoshizawa's Dead Drunk Karaoke Box
(C64) [kodomo challenge (Various)] Natsu no Kansatsu Nikki
(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi
[Aimaitei (Aimaitei Umami)] Kigen no Warui Kuro Gal Futanari Kanojo ni Karaoke ni Yobidasareta Kekka... | What Happens When Your Tan Gyaru Futa Girlfriend Is in a Bad Mood and Invites You To Karaoke... [English] {2d-market.com} [Decensored] [Digital]
(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (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
