During the summer of 1867, two sailors from the British ship ''Icarus'' were killed in the pleasure quarters of [[Nagasaki]]. Assassins from [[Tosa han]] were suspected, however the [[Tokugawa Bakufu|Bakufu]] was unable to apprehend the killers. | During the summer of 1867, two sailors from the British ship ''Icarus'' were killed in the pleasure quarters of [[Nagasaki]]. Assassins from [[Tosa han]] were suspected, however the [[Tokugawa Bakufu|Bakufu]] was unable to apprehend the killers. |