Cinderella Boy
Japanese title: シンデレラボーイ
Type: TV
Source: Manga
Episodes: 13
Status: Finished Airing
Aired: Jun 21, 2003 to Sep 13, 2003
Broadcast: Saturdays at 10:30 (JST)
Duration: 25 min per ep
Rating: PG-13 - Teens 13 or older
Studios: Magic Bus
Licensors: Discotek Media
Genres: Action, Adventure, Comedy, Mystery
Themes: Magical Sex Shift
Demographics: Seinen

Ranma and his partner Rera run a detective agency in Giraffe City. An arranged accident leaves Rera and Ranma in an unfortunate state where the two detectives swap bodies at the stroke of midnight. With Ranma dissapearing and the beautiful Rera appearing. 

(Source: ANN)