Osananajimi to Amaaku Ecchi ni Sugosu Houhou(2007)

Description

Sousuke has a childhood friend, Asuka. His family often moves due to his father's business. One day, Emily and Kotone, his other two childhood friends, start to live with his family. Emily finds a diary, which Sousuke used to keep when he was a child, and some erotic games they played are written in it. Inspired by it, Asuka, Emily and Ko...