Popotan (ぽぽたん) is a Japanese adult visual novel developed by Petit Ferret with character designs by Akio Watanabe under the alias Poyoyon♡Rock. which was originally released as a PC game on CD-ROM on December 13, 2002. The game was re-released on DVD-ROM with better support for Windows XP, as well as other enhancements like new opening and voiced dialogue under the name Popotan Po! on August 1, 2003. A subsequent port which took out some of the adult content was released for the PlayStation 2 by WellMADE named Oshiete! Popotan ) the following year on March 11, 2004. A fan disc titled Popotan Fan Disc together with A・SO・BO was released on July 11, 2003, shortly before the DVD-ROM re-release also by Petit Ferret.

The gameplay in Popotan follows a semi-predetermined plot line. The basic event scenarios fall into place, however as the story progresses depending upon what the player sees and how they respond, the storylines can eventually diverge quite dramatically. The game focuses mostly on the three sisters, and it is necessary to finish a scenario with at least one sister before the player can pursue any of the other girls. Beyond that, the other main goal is to make available sexual scenes and images the player can view or replay at any time depicting the protagonist having sexual intercourse with one of the girls.

The title is meant to reflect the prominence of dandelions in the game spelled tanpopo in Japanese. "Popotan", which is based off that word, is a nonsensical word in Japanese. Popotan is almost literally like saying "liondandy". It also uses the flipped "tan" to essentially call the dandelions by name; "-chan" is a suffix added to names, sometimes used as a fond diminutive, and a child's pronunciation often renders it to "-tan". Thus, "liondandy" becomes "Lion-chan".

Popotan has made the transition into various other media as well. A manga series based off the visual novel by Sassami Yachiruda was published by Soft Garage; the manga was released in two volumes on June 20 and August 22, 2002, respectively. A twelve episode anime directed by Shinichiro Kimura that originally aired on Tokyo Broadcasting Systems's satellite station BS-i from July 17 through October 2, 2003. The anime was licensed originally in North America by Geneon USA until Geneon folded in 2008. A special preview DVD was released in Japan with the first episode and special interviews with the characters. An artbook by Poyoyon Rock as well as other media were also released by the franchise.

Source: Wikipedia