Originally a Lieutenant (OF-1) from the Imperial Japanese Army, as a commander of the 140th Special Mechanized Infantry Squadron specialized to fight against the Abyssals, although to no avail.
While on verge of death during a battle against a To-class Light Cruiser in the past, he was saved by Inazuma, who was sent into battle for the first time against the Abyssal fleet.
Afterwards recruited into the Imperial Japanese Navy as a Lieutenant Commander (OF-3) to take command of the Ship Girls.
