When Yu Yu Hakusho was still running in Japan ... In episode 22, when Yusuke, Botan, Kuwabara and his sister Shizuru were watching a video (VHS) (sent by Hiei under orders from Koenma) about ...

He entrusts Death God Botan, to deliver to Spirit Detective Yusuke, a mysterious item which must be protected from the invading enemy. However, by the time Botan finds Yusuke, she's too weak to ...