In the guise of Mitsuemon, a retired crepe merchant from Echigo, he roams Japan with two samurai retainers, fun-loving Sasaki Sukesaburō (Suke-san) and studious Atsumi Kakunoshin (Kaku-san).

The episode concludes with a brawl in which the unarmed, disguised protagonists defeat a crowd of samurai and gangsters, culminating in the presentation of the inrō that reveals the hero's identity.

He wears the lavish garb of a wealthy retiree and carries a walking stick (a staff), which also serves as his defensive weapon in combat.

Opposite them, Tadashi Yokouchi, Shin'ya Ōwada, Goro Ibuki, Jundai Yamada, and Masashi Gōda have played Kaku-san.

Portrayed by Kaoru Yumi, Ogin was the lead character in a light-hearted spinoff, Mito Kōmon Gaiden Kagerō Ninpō-chō.

For nearly three decades, Mito Kōmon shared the time slot with Ōoka Echizen and Edo wo Kiru, and various actors and actresses appeared in both series.

In the light novel Death March kara Hajimaru Isekai Kyousoukyoku, the main protagonist quotes Mito Komon frequently.