"User summary (details translated from Japanese Wikipedia):
Episode of the Clovers, or 白詰草話 (The story of white clovers) is an interactive fiction game from Littlewitch, illustrated by Ashito Ooyari/NOCCHI. The story is about a research lab trying to clone together the perfect human being, in order to shape strong soldiers.
Episode of the Clovers is Littlewitch's first game using the FFD (Floating Frame director) system. Instead of having a picture with text beneath it, the interactive story is told in comic book panes that pops up or scrolls into the screen. All lines are in word balloons.
The original Windows PC release is an adult game containing erotica and comes in a limited special edition and a normal edition. The subsequent Dreamcast release features full voice acting for all lines, but with the erotic scenes cut out from the game. The DC release is strangely enough still rated CERO-18, despite the fact that it didn't even contain nude scenes. The Japanese Wiki entry for the game claims CERO-15 for the DC release, however that is not the truth.
In 2006, Littlewitch released a "Standard edition" for PC, this time on a DVD.
Details source: Wikipedia, "白詰草話," available under the CC-BY-SA License.