Answer the following question: Extract the answer to the following question from the movie plot. If the question isn't answerable, please output "Can't answer". Question: Who must be killed to keep the lords secret? Title: The Tale of Zatoichi Movie plot: The blind masseur Zatoichi is hired by yakuza gang-leader Sukegoro (Eijiro Yanagi) as he thinks that war is inevitable with the rival yakuza Shigezo (Ryuzo Shimada). Zatoichi has a distinguished reputation as a swordsman and Sukegoro thinks he is money well spent. Shigezo responds by hiring a ronin of similar repute, Miki Hirate (Shigeru Amachi). Ichi is a meek and humble man who is commonly underestimated by most men, and looked upon suspiciously. His being a masseur, which was a position of low regard in feudal Japan, merely increases the hostility that is shown towards him. They even try to take advantage of his blindness in a gambling den, but from early on it is clear that Zatoichi draws strength from his disability. The only person who respects him is Hirate, who has a similar code of practice. Though Hirate and Ichi know they must fight when the war begins, they develop a kind of friendship. Hirate is eager to fight Zatoichi, as he is terminally ill with tuberculosis and considers death at the hands of a master swordsman preferable. As Hirate becomes increasingly sick, Sukegoro decides to attack Shigezo. He also tells Ichi that he is no longer needed. However, as the war begins, Shigezo informs Hirate of his fallback plan since Hirate is ill, that he intends to shoot Ichi with his rifle. Hirate drags himself from his bed to fight Zatoichi on the condition that the rifle is left behind. Ichi learns from a boy at the temple where Hirate was staying that Hirate will be fighting after all, and also learns the reason. Zatoichi travels to the battle to duel with the dying samurai. After the tense final fight, in which Zatoichi prevails, Zatoichi leaves Iioka and rejects the advances of Otane (Masayo Banri), who has become disillusioned with the yakuza lifestyle, to continue as a solitary wanderer.
Answer:
Can't answer