Sister Princess

is a Japanese video game series released on the PlayStation in 2001.

Synopsis
Wataru Minakami is a top student who failed his high school entrance exam because of a computer glitch. He later discovered that he was accepted to Stargazer Hill Academy, which is located at a mysterious place called Promised Island. At the request of his father, Wataru is whisked away to the island, and before he can settle in, a dozen of cute and charming girls start to flock him and claim to be his younger sisters. As Wataru gets closer to his newfound siblings, a deeper mystery as to why they were sent to the island comes to play.

Games

 * Sister Princess: March 2001 [PlayStation, DreamCast]
 * Sister Princess ~Pure Stories~: December 2001 [PlayStation, DreamCast]
 * Sister Princess 2: March 2003 [PlayStation]
 * Sister Princess RePure: March 2003 [GameBoy Advance]

Volumes

 * -|Light Novel=

Sister Princess: RePure
A Light Novel written by Sakurako Kimino, with illustrations by Naoto Tenhiro, based on the anime series: Sister Princess RePure released in November 2002.
 * -|Manga=

Sister Princess: RePure
The manga adaptation of the light novel, based on the anime. It is illustrated by Morishima Pechi. It was released under the Dengeki Comics imprint from April 2004.