As a result of searching the bibliographic point of view of the book from 1828 when he became a disciple of Jippesya to 1832 when the name “Zyuzitei-sanku” had become widely known, it was found the following things.
First, what are “Kankosya-chutamaru” and “sanchyo” as the authors of the“Seiro-irodosi” published in 1828, and “Tokai- sanzin” as the editor? As a result of investigating their identity, which was apt to be confused with Itoi, each of three was a different person. Also, based on bibliographic research, we could reinforce and retouch the precedent that Tokai-sanzin was Itoi.
I pointed out the following two points as my basis for previous reason. (1)I suggested the possibility that Chinpotei-tanenori is Itoi(another name is Tokai-sanzin).(2)In addition to precedent that Sanchyo, who appears in the Ninzyobon “Kirino-hitoha”, is Gozitei-sanchyo (and he is not Zyuzitei-sanku.) and the possibility that Sanchyo, who appears in the book “Kirino-hitoha” is a warrior of the Aki Domain “Syokaro-sanchyo” is coexisted.
Second, by focusing “Dozikun-irohatanka” and as the text “Irohawake-edonomeisyo”, I demonstrated that it can be seen Itoi's attitude of emphasizing that Itoi who moved to a disciple of Zippensya in 1828 as “Tosensya renamed Zyuzitei” is Zyuzitei Sanku until 1832.