[Yonemochi Akihiko] adult challenge 1 [米餠昭彦(なめぞう)] おとなチャレンジ

adult challenge 2

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

adult challenge 4

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

adult challenge 3

[Kiriyama Akihiko] Babaajiru to Kahlua Milk

[Yonemochi Akihiko] Nikudan Asuriitou

[Youmu Shippitsusha Tou (Maeta Akihiko,Oshima Koichi,Leone,Aratsuki Nyaomi)] Gelbe Sónne 6 - Hime-chan no Omasena Himitsu (Hime-chan's Ribbon)

[Nakajima Akihiko] Pitiable Princess (To Heart)

adult challenge 1