Sister Princess - Opening (シスター・プリンセス)

Sister Princess (シスター・プリンセス, Shisutaa Purinsesu?) is a popular Japanese bishōjo series authored by Sakurako Kimino and illustrated by Naoto Tenhiro. It began as a serialized manga in 1999. In 2001, it was turned into a bishōjo game for the Sony PlayStation. Sequels to the game were released for the PlayStation and Game Boy Advance. Sister Princess was also adapted into a Japanese anime television series.