Tōgō Shima commanded the Earth Federation’s Dreadnought-Class Space Battleship Yamato 17th during the Galactic Hundred Year War. In 2503, his crew was deployed to study the Gorda civilization’s ruins on planet Rococo, where Dr. Sakamoto, a shipboard scientist, retrieved vital data about the extinct society. This revelation triggered an ambush by the Salene Federation, culminating in the Yamato 17th’s destruction and its subsequent crash onto an uncharted world.

Decades later, youths on Rinbus, a planet within Globular Cluster M27, located the battleship’s remains. Its operational computer core retained archived records, which ultimately facilitated the creation of a next-generation vessel. Tōgō’s documented role remains anchored to his command during the Rococo mission, with no elaboration on his personal history or motivations in existing records.