Seta was the name ship of the four river gunboats. Her sisters were Katata, Hira, and Hozu. One officer list files the type under Hira’s name. Harima at Aioi laid her down on 29 April 1922 and launched her on 30 June 1922. She could not go to sea in one piece. She was registered on 6 October 1923, taken apart, and shipped to the Tunghwa yard at Shanghai to be put back together. The reassembly is 1923 or 1924 in the movement record, and 20 October 1923 in the ship account. She spent her life on the Yangtze. In the summer of 1937 she was the boat based at Changsha. On 25 November 1942 a strafing attack killed five of her men.
Yoshiyuki Kishi had her in 1940. The movement record starts him on 11 June. The officer list starts him on 1 June. Both end the tour on 5 October. On 6 June 1943, near Shasi, seven American fighters hit her. Fourteen men were killed, including the captain, and fourteen were wounded. The movement record names him Hisashi Matsumoto. The officer list marks a Captain Matsumoto as lost that day, but the characters under the name belong to the captain before him, and the given name does not match. He is not filed. She was repaired at Shanghai by the end of July and went back up the river.
Fighters attacked her on 1 September 1943, on 22 May 1944, and on 11 June 1944, and did not hit her. On 17 August an attack wrecked her stern and her rudder. She was towed to Shanghai. The repairs were finished on 24 October 1944. The movement record says American aircraft destroyed her on 26 November 1944. The officer list says she surrendered on 2 September 1945 and was handed to China as Chang The, and that Communist forces took her in 1949. The ship tables call that name Chang Teh. One account says the wreck was raised, that the Republic commissioned her as Chang Teh, and that on 30 November 1949 she became Min Jiang and was broken up in the 1960s. She was struck on 30 September 1945. The officer list does not give a strike date. No gun count is given here. The lists do not agree on a fit that can be checked against this hull.