Millions Knives Vash and Knives witnessed the survivors of the crashed ship use up their plants to power their new city causing Knives to swear revenge against all humanity. He struck out, killing the human guards and when Luida arrived to retrieve Vash, Knives ordered him to kill her. Vash refused and when Knives tried to kill her, it caused Vash to unintentionally open a "gate" in his left arm. Knives removed Vash's arm to close the gate and then withdrew, promising that within a century, he would destroy "millions" of humans and populate the planet with plants...