Career
In aerial combat over China and the Pacific, he was officially credited with destroying 10 enemy aircraft. During the Pacific campaign of World World War II, Aioi participated in the conquest of the Philippines as a pilot aboard the aircraft carrier Ryūjō. Later, he served as a group leader in the 202 Air Group in the Solomon Islands Campaign.
Aioi experienced the Battle of Leyte Gulf aboard the carrier Zuikaku in 1944.
He ended the war as executive officer of the 343 Air Group in Japan.