Shintaisou: Kari
English title: Princess 69
Japanese title: 新体操(仮)
Alternative titles: Shintaisou (Kari) The Animation: Yousei-tachi no Rondo, Rhythmic Gymnastics
Type: OVA
Source: Visual novel
Episodes: 4
Status: Finished Airing
Aired: Oct 25, 2002 to Aug 22, 2003
Duration: 31 min per ep
Rating: Rx - Hentai
Studios: ORADA COMPANY
Producers: Pink Pineapple
Licensors: Media Blasters
Genres: Hentai

A P.E. teacher, Nikusuke, happened to obtain a brief of "Dark Rhythmic Gymnastics Project". It is a competition where the players compete with others their lewdness. Following the project, Nikusuke looked for the players with Tomomi, a granddaughter of the board chairman. Their first game was Miku. Tomomi deceived innocent Miku, and she invited Miku out at night.