Gisho Bakumatsuden

is a Japanese light novel series written by Ryosuke Sakaki, with illustrations by Yasunari Morimoto. The series began publication on August 10, 1993 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
At the end of the Tokugawa shogunate, a man appears from the countryside of Tosa in the tumultuous streets of Edo since the arrival of Kurofune. The man's name is Ryoma Sakamoto Akihabara. He has a huge face that is 1.5 times as large as a human being, and he is a wild child who looks like a mass of action. Akihabara suddenly destroyed the yakuza gang that divides the gambling house. Along with Katsura Chasui of the Choshu clan, who I met here, he is feared as a natural enemy of the yakuza. Eventually, the two got the treatment of Shinsaku Takasugi, who was passionate about Sonno Joi, and eventually became in the midst of a defeat movement. On the other hand, there are poor gokenins in the neighborhood. The name is Toshizo Yotsuya. Taking the opportunity of the confrontation with Yotsuya and Akihabara, he reunites with his childhood friend Minami. However, Minami, who became the daughter of a wealthy merchant, was actually the Oniwaban of the Shogunate. A drama of fights, love and friendship set in the Bakumatsu Restoration. The first act of an exciting historical novel, the beginning and beginning of the Edo Period edition.