Real time 3d Anime Shader. You play as a hero who finally returns to his home town to attend his last year(s) of college. Once attending he finds a club that some of his classmates are in called "Let's Keep It Secret Club" (rough translation). Turns out that everyone else in the Club is female, and the "It" they are trying to keep secret are the lewd acts they plan to commit. Seeing that you play as the only male member; it would appear a new life has started for our main character.