Sister Princess: Re Pure
Genres: Drama, Romance
Type: TV, Episodes: 13
Aired: Oct 4, 2002 to Dec 25, 2002
Studio: Zexcs
Source: Light novel
Rating: PG-13 - Teens 13 or older
Synopsis:
After a long time, Wataru has decided to leave his family home and live on his own. The girls have also decided to split up and most of them are living separately as well. But none of them have forgotten about their brother and still stick together to meet him.

(Source: AniDB)