(C63) [Kodomo Challenge (various)] Mainiti-ga-Kodomo-no-hi
(SC39) [Various (Various)] Hatena? Challenge! (Challenge First-Year-Student)
[Kon-Kit] Kaya-nee Volleyball ni Idomu | Ane☆Volleyball Challenge (Bishoujo Kakumei KIWAME Road 2012-12 Vol. 4) [English] [Malone] [Digital]
(SC39) [Nounai Kanojo, Ningen Modoki, Tateyoko Hotchkiss, Kagi Node (various)] Hatena? Challenge! (Challenge First-Year-Student)
Eroi Bunnyue ni Shasei Gaman Shoubu o Idomu. | Challenging the Lewd Bunny to a Cum Endurance Battle.
(C64) [kodomo challenge (Various)] natsu no kansatsu nikki | Summer observation diary (Original) [English]
[Nozarashi Satoru] Jigoujitoku no Midare Randori | The Dirty Randori She Brought On Herself Ch. 1-2 [English] {doujin-moe.us}
[Mikeke] Hatena Manga - Semete Yacchae! (Challenge First-Year-Student)
S-ken K-shi Shakaijin Joshi Volleyball Circle no Jijou Ch. 5
S-ken K-shi Shakaijin Joshi Volleyball Circle no Jijou Ch. 8