In this book it was written serving 'nothing else' but a lord and criticized ideological 'loyalty' and 'justice' and encouraged 'being ready to die any time' and 'learning death', but was banned probably due to its criticizing the administration of the domain and was not read widely.
これには「無二無三」に主人に奉公す、といい観念的なものに留まる「忠」「義」を批判するくだりや、普段から「常住死身に成る」「死習う」といったことが説かれていたが、藩政批判などもあったせいか禁書に付され広く読まれることは無かった。