Serie includes 11 albums .
Eiken Adult Kirika ~With Love From the Milk Bags~
Eiken Makaizou 2
Eiken Rare Illust-shuu
Eiken Rensai Kaishi 10-shuunen Kinen Bon Kaiteiban Sai
Marugoto Chiharu
Otona no Eiken Kirika ~Chibukuro yori Ai o Komete~
Otona no Eiken ~Shinonome Chiharu 26-sai~
Otona no Eiken 〜 Shinonome Chiharu 26-sai 〜
Udon Fumi ICBM
Zenra Eiken