Kaga presents as a pale-skinned young woman with long, dark brown hair typically gathered in a side ponytail fastened by a blue ribbon. Her eyes are light brown or green. She wears a traditional kyudo archer's uniform: a white kimono top, blue hakama skirt, and black thigh-high tabi socks paired with tall geta sandals featuring blue straps. A black muneate breastplate protects her chest, signifying her archery connection. Design elements reflect her original aircraft carrier form: a primary flight deck hangs behind her back, while another encircles her waist, symbolizing her initial three superimposed flight decks merged during her 1930s refit. The katakana character "カ" (ka) marks the aft sections of these decks, matching her historical identification. Her personality remains consistently stoic, serious, and formal, exhibiting minimal emotional expression in speech. This reserved demeanor contrasts sharply with the more playful Akagi, her frequent companion. Despite her reserved exterior, moments reveal a capacity for gentleness and care, particularly towards Akagi and the First Carrier Division. She displays pride in her role within this division and maintains a notable rivalry with the Fifth Carrier Division carriers Shoukaku and Zuikaku, often questioning their skill. She demonstrates politeness and consideration in conversation but voices criticism towards certain foreign forces like the Royal Air Force while expressing respect for others such as the Luftwaffe. Protective instincts emerge regarding Akagi, rooted in their shared historical fate involving scuttling by destroyers after battle damage. Functionally classified as a Standard Aircraft Carrier (CV), Kaga possesses significant aircraft capacity distributed across multiple slots, varying with her remodel state. Her base form carries 93 aircraft, increasing to 98 after her initial remodel (Kai). Subsequent remodels unlock advanced forms: Kai Ni, Kai Ni E (a night operations carrier/CVN), and Kai Ni Go (a modernized carrier). These later forms feature five equipment slots and gain capabilities including night combat operations, special anti-submarine warfare (ASW), and unique equipment synergies. Specific aircraft or equipment, such as Reppuu Kai series fighters or Ryuusei torpedo bombers, provide stat bonuses when equipped, enhancing firepower, torpedo, anti-air, or evasion depending on the combination. Her remodels demand significant resources and specific items, like Prototype Flight Deck Catapults for Kai Ni Go. She launches aircraft by firing specialized arrows from her bow; feather color denotes aircraft type (fighters, dive bombers, torpedo bombers). Upon release, arrows transform into squadrons piloted by "Pilot Fairies". Her background draws from the historical Imperial Japanese Navy aircraft carrier Kaga. Originally laid down as a Tosa-class battleship on July 19, 1920, treaty restrictions led to her conversion into an aircraft carrier following the damage of the battlecruiser Amagi during the 1923 Great Kanto earthquake. Commissioned on March 31, 1928, she initially featured an unconventional three-flight-deck configuration, later modernized into a single continuous flight deck. Engine exhaust issues caused operational difficulties, particularly heat affecting the rear crew quarters. She served extensively, participating in the Shanghai Incident (1932), the Second Sino-Japanese War, the attack on Pearl Harbor (1941), and operations around Rabaul and Darwin. During the Battle of Midway on June 4, 1942, dive bombers from USS Enterprise inflicted critical damage. She was subsequently scuttled by torpedoes from the destroyer Hagikaze. Wreckage attributed to her was located near Midway Atoll. This history informs her character's context, including her partnership with Akagi within the First Carrier Division and her operational focus.