1 was a Japanese cargo ship owned by Yamashita Kisen K. K. The ship was built in 1919 by Asano Shipbuilding Company, at Tsurumi-ku, Yokohama, and sank on 26 April 1944 with great loss of life.

She was the first ship of her class of 25 standard cargo ships (referred to as Type B at the time) built by Asano Shipyard (one was built at the Uraga Dock Company) between 1918 and 1919.

1 was requisitioned as a transport ship by the Imperial Japanese Navy.

In April 1944, she departed Shanghai as part of the Take Ichi convoy carrying a full Japanese regiment of the 32nd Infantry Division.

There were no survivors[3] from the 2,586 soldiers, 81 ship's crew, and 2 armed guards aboard at the time of sinking.