However, after Murakami found out that Oishi had killed Kura Kozuke no Suke, he committed seppuku at Sengaku-ji Temple where Oishi rests, since he was ashamed of his rude behavior toward Oishi.
しかしその後、大石が吉良上野介を討ったことを知ると村上は無礼な態度を取ったことを恥じて大石が眠る泉岳寺で切腹した。