Following the defeat in the Guadalcanal campaign, at the beginning of 1943, the Navy Technical Department and The High Command of the Imperial Japanese Navy strived to increase the defensive potential of all their warships. Apart from standard refits of the majority of the Imperial Japanese Navy units, a plan was adopted, which called for reconstruction of two “Takao” class heavy cruisers into anti-aircraft units. Through a coincidence only the Maya underwent such conversion. This publication shows the cruiser in her anti-aircraft configuration and briefly describes her career.