Note: Nakagawa-sensei did not officially appoint a successor before his death. There were 6 recipients of Menkyo Kaiden from Nakagawa-sensei, so taken in order that makes Konishi-sensei the rightful and legitimate 16th Soke of Mugairyu Iaihyodo. (The remainining Menkyo Kaiden recipient is Nagasawa Misao.)Menkyo Kaiden recipients from Konishi-sensei are: Sega Yoshiyuki, Konishi Shin, Tamenori Akitada, Fujimura Michio, Nakatani Masaya, Furuhata Kimiyuki, and Niina Gyokudo (Soke of Meishi branch.)

Regarding the lineage from 5th, Tsuji Kimata Sukehide, to 8th Takahashi Yachisuke Shigeyuki Tsuji Kimata Sukehide (5th), was Soke of Edo Mugairyu, which continued on to Tsuji Bunzaemon Sukenobu (6th), Tsuji Kinichiro Yoshishige (7th), Tsuji Kimata Shibaoka (8th), and Tsuji Kamegoro Sadatoku (9th) after which the lineage died.

The fellow student of Tsuji Bunzaemon Sukenobu (6th), Takahashi Hachisuke Mitsusuke, was the eldest son of Takahashi the 5th, Shoue Akishige, born in the 3rd year of Kanei, Jan 13, to the Sakai House in Edo.

From a young age he studied under Tsuji Bunzaemon Suketaka (4th), and in later years trained under Tsuji Kimata Sukeyuki (5th). He taught iai as official instructor to the clan, and when he was 43 was ordered to move back to Himeji from Edo and remained the chief instructor to the Sakai house teaching Mugairyu.

In the 6th year of Bunka, on September 4 at the age of 60 he passed away in Himeji and his grave is in Keifukuji Temple in Himeji City.

Because Edo Mugai died off after Tsuji Kamegoro Sadatoku (9th), fellow student of Tsuji Bunzaemon Sukenobu (6th), Takahashi Hachisuke Mitsusuke and his descendents in the Sakai house carried on the Mugairyu traditional through the Bakumatsu period and from there through the Meiji, Taisho, and Showa Eras Mugairyu was transmitted through the Takahashi family to Nakagawa-sensei.

Therefore Takahashi Hachisuke Mitsusuke is considered the 6th Soke in place of Tsuji Bunzaemon Sukenobu, and from him his Menkyo Kaiden recipients Nakatani, Shirai, Toda, Okamoto, and Konishi are considered the legitimate inheritors of Mugairyu.