Saikano: The Last Love Song on This Little Planet. (最終兵器彼女, Saishū Heiki Kanojo, lit. She, the Ultimate Weapon) is a Japanese manga series written and illustrated by Shin Takahashi.
The manga was serialized in Shogakukan's Big Comic Spirits magazine and the chapters collected into 7 tankōbon volumes. It has been licensed and distributed by Viz Media in North America. It is also distributed in the United Kingdom by Manga Entertainment (as "She, the Ultimate Weapon").
An anime television series adaptation animated by Gonzo aired from July to September 2002 and a side-story OVA series animated by Studio Fantasia was released in 2005. The anime television series was also licensed by Viz, but is now licensed by Sentai Filmworks.
A live-action movie adaptation was released in Japan on January 28, 2006 with Aki Maeda starring as Chise.
