The move consists of a combination of five strikes to pressure points on the target's body. After the target has taken five steps, their heart explodes in their body.
This move was taught to Beatrix Kiddo by Pai Mei, and used by Beatrix to kill Bill. Nobody is quite sure why Pai Mei taught Beatrix this deadly move and not Elle nor Bill, however, Pai Mei must have seen a fundamental difference in character between Beatrix and either Bill or Elle. This is suggested because, although Beatrix represented everything he despised, he agreed to train her. It is ironic however, as he would go on to train Elle under the same conditions except the latter would eventually murder him.