Matsukata Masayoshi
While at Nagasaki, "Keangsoo" was purchased by Matsukata Masayoshi, a leading Satsuma "samurai", on November 3, 1867, for the amount of 160,000 "ryō" (approx $250,000 at then current exchange rates), whence she was renamed "Kasuga Maru". With a speed of , and six cannons, she was faster than anything in the Tokugawa shogunate Navy, and Matsukata intended to convert her into a warship. However, already alarmed by the high cost, as the price was four times the budget Matsukata had been authorized, he was overruled by the Shimazu clan elders. She was assigned to be used as a cargo ship. In disgust, Matsukata gave up command of the ship he had bought, only to see it converted into a warship just a few months later under the command of his assistant, Akatsuka Genroku.