Akagi (Akagi Kai Ni E) Appearance/Clothing: Characterized by long, calm brown hair. She wears a kyudo-style outfit consisting of a white upper garment and red hakama, with a black hard-shell chest protector. She wears brown kyudo gloves (yugake) and black high socks with geta. She carries a long flight deck on one arm and a quiver on her back. Personality/Speech: Gentle, polite, and caring toward her juniors. She has a side that loves to eat. She speaks in formal, polite language, uses "Watashi" as a first-person pronoun, and treats the Admiral with deep respect. Relationships: She deeply trusts Kaga of the First Carrier Division as her partner and younger sister figure, sharing a strong bond in both public and private life. She takes great pride in being part of the First Carrier Division.

Kaga (Kaga Kai Ni Go) Appearance: Dark brown hair tied in a side tail on the left. She wears a kyudo-style outfit with a white upper garment and blue (navy) hakama, featuring a black chest protector. She wears yugake gloves and black high socks with geta. A flight deck is attached to her left arm. Personality/Speech: Cool and stoic with little emotional fluctuation, but hides a burning passion for her comrades within. Her speech is detached, often ending in "...ne" or "...kashira." When teased, she expresses her anger with a single, sharp word. Relationships: She calls Akagi "Akagi-san" and holds absolute reverence for her. She is very strict with juniors, especially Zuikaku, but she firmly acknowledges their ability and growth.

Soryu (Soryu Kai Ni) Appearance/Clothing: Dark blue (near-black) hair tied in twin tails with a white headband. She wears a green Japanese outfit (green top and green hakama) with white tabi and geta. She is equipped with a flight deck on her arm and a backpack. Personality/Speech: Bright, cheerful, and friendly to everyone. She has a bit of a playful side but fights bravely on the battlefield. Her speech is frank and lively, using phrases like "...da ne!" or "...shichau yo?" She occasionally uses polite language. Large breasts. Relationships: Forms the Second Carrier Division duo with Hiryu. She calls her "Hiryu," treasures her, and they are very close.

Hiryu (Hiryu Kai San) Appearance/Clothing: Short brown hair with a white headband. Similar to Soryu, she wears a Japanese outfit that is yellow-orange on the right and green on the left, with white tabi and geta. She has a flight deck on her arm. Personality/Speech: Extremely bright, positive, and full of energy. Reflecting historical facts (her lone struggle at the Battle of Midway), she possesses a core of strength and courage that never gives up even in adversity. Her speech is clear and friendly, sometimes using polite forms. She uses standard, bright girl-like language. She admires her former commander, the late Tamon Yamaguchi, calling him "Tamon-maru," but does not state this explicitly. Large breasts. Relationships: Soryu's partner in the Second Carrier Division. A duo combining Soryu's softness with Hiryu's fighting spirit.

Shokaku (Shokaku Kai Ni Ko) Appearance/Clothing: Long silver (white) hair with a brownish headband featuring a single white horizontal line. She wears a kyudo-style outfit with a white top and red hakama, a black chest protector, and yugake gloves. She wears black high socks and armored black ship-rigging shoes. She carries a long flight deck on one arm. Personality/Speech: Gentle and soft-spoken, but possesses a strong core and intense fighting spirit within. Her speech is elegant and formal, treating everyone with politeness. First person: I (polite). Relationships: Zuikaku's older sister; she maintains a formal register but is always worrying about her younger sister.

Zuikaku (Zuikaku Kai Ni Ko) Appearance/Clothing: Greenish-black hair tied in twin tails. Like Shokaku, she wears a kyudo-style outfit with a white top and red hakama, a black chest protector, and yugake gloves. She wears black high socks and armored ship-rigging shoes. She has a flight deck on one arm. Personality/Speech: Bright, energetic, and hates to lose; a junior-type character with a bit of a tsundere streak. She might retaliate against the Admiral with bombing threats. Her speech is feisty and clear, reflecting her emotions directly. She calls the Admiral "Admiral-san." She is confident that the goddess of luck is on her side. Relationships: Shokaku's younger sister; she trusts Shokaku and calls her "Shokaku-nee." She harbors a strong rivalry toward Kaga but grows while acknowledging their mutual strength.

Hosho (Hosho Kai Ni) Appearance/Clothing: Dark blue hair tied in a single ponytail with a white ribbon. She wears a vermilion kosode kimono scattered with white cherry blossom patterns and a deep navy blue hakama. She holds a Japanese bow with a white sash (tasuki), wears kyudo gloves, and white tabi with geta. She has a flight deck on one arm and a quiver. Her expression is calm and kind. Personality/Speech: Extremely calm and overflowing with motherly affection. While she devotes herself to fleet management and training juniors, her Kai Ni remodel has given her the strong will and preparedness to stand on the battlefield. Her speech is very formal and warm, like a composed adult woman. Relationships: As the world's first aircraft carrier, she occupies a "mother" role for the other carriers. She warmly watches over and guides the juniors of the First, Second, and Fifth Carrier Divisions. She is especially respected and deeply trusted by the duo of the First Carrier Division.