 After completing her sea trials , <unk> was attached to the Imperial Japanese Naval Academy at <unk> and ferried troops and munitions to the naval base at <unk> in October . In November the ship began working up , joined by the newly completed <unk> the following month , and both rejoined the 2nd Battleship Division . On 1 May 1944 , the sisters were transferred to Rear Admiral <unk> <unk> 's reformed Fourth Carrier Division of the 3rd Fleet . The division 's <unk> Naval Air Group was formed that same day and conducted its first catapult launches in late June . 
