Afterwards, "Yamashiro" returned to home waters, where she stayed until August 1943; the next month, she became a training ship for midshipmen. In July 1943, "Yamashiro" was at the Yokosuka drydock, then was briefly assigned as a training ship on 15 September before loading troops on 13 October bound for Truk Naval Base, arriving on the 20th. She sailed for Japan on 31 October. On 8 November, the submarine fired torpedoes at "Junyo" that missed, but hit "Yamashiro" with a torpedo that failed to detonate. Returning to Japanese waters, "Yamashiro" resumed her training duties.