Eroge created by CUSTOM for PC-9801 on 1996. It was later ported to the Windows 95 by ALTAIR on 1998. It is famous for very beautiful graphics in spite of only 16 colors (PC-9801 ver) / 256 colors (Microsoft Windows ver). It is a card game based on a rule of the Hanafuda (Koi-Koi). All cards belong to one of the 12 signs of the zodiac.
