In 1853, Ryoma left Kochi for Edo to train in swordsmanship, entering the Chiba Sadakichi Dojo of Hokushin Itto-ryu, one of Edo’s three great schools.
That same year, four of Perry’s “Black Ships” arrived at Uraga, and Ryoma was mobilized for coastal defense in Shinagawa.
After returning home the following year, he visited Shoryo Kawada, who taught him that Japan needed large ships and skilled people to operate them in order to deal with the world as an equal.
At that point, he realized that “joi” (driving out foreigners and rejecting diplomacy) was a mistake.
In 1861, at 27, Ryoma joined the Tosa Kinno-to, a political group formed by the Tosa Domain and led by his relative and close friend, Zuizan Takechi.
The next year, carrying a secret letter from Takechi, he visited Genzui Kusaka, who told him, “Neither daimyo nor court nobles can be relied on anymore. From here on, ordinary people must rise up.” Ryoma returned to Tosa, and the following month he left the domain without permission.
That same year, he went to Edo and became a disciple of Katsu Kaishu, a senior shogunate naval official.
Katsu was later ordered to defend the Osaka Bay area and, as part of that mission, built the Kobe Naval Training Center. Ryoma accompanied him and entered Katsu’s private school attached to the facility. While working as Katsu’s right-hand man, he trained intensely in naval studies.
In 1864, Ryoma met Takamori Saigo as Katsu’s envoy.