Ito had a draft of the fifth memorial in his inside breast pocket at the time of his assassination, and records of the time state that it was similar to the copy of the third memorial and he wanted to persuade Kondo based on this idea.
また、暗殺時の懐に5通目の草稿があり、同時代の記録によるとほとんど3通目の写しに近く、この案で近藤を説得しようとしていたと言われている。