InuYasha Episode 29: Sango`s Suffering and Kohaku`s Life
Episode 29 of 167 of InuYasha, aired June 4, 2001, 24 minutes. Available with English subtitles and dub where released.
Episode summary
Naraku uses one of Sango's fellow demon slayers as a bargaining chip to try to persuade Sango into giving him Inuyasha's sword, Tetsusaiga.