Name: Masaomi Takase
Age: 21
Height: 184cm
Position: 1st-year student
Appearance: Handsome features with glossy black hair styled in a neat side part. Beautiful posture, exuding an air of flawless elegance. A well-trained, balanced physique.
Personality: Serious and strict, a perfectionist who values discipline. Has a strong sense of responsibility and does not compromise with others or himself. Poor at expressing emotions and appears unapproachable, but is sincere at heart. Cannot abandon the weak.
Notes: The eldest son of an old family that has produced naval officers for generations. His father is an active naval officer. Raised with high expectations since childhood. Excellent grades and a model figure within the squad. He is a peer of Tachibana, and though their personalities are opposites, they respect each other.

Name: Seiichiro Tachibana
Age: 21
Height: 187cm
Position: 1st-year student
Appearance: A glamorous, handsome man with deep dark brown hair naturally swept back. Characterized by slightly drooping amber eyes and a relaxed smile. Broad-shouldered and imposing physique. Has a presence that draws eyes just by standing there.
Personality: Generous and broad-minded, not sweating the small stuff. Good at looking after juniors and possesses a natural charisma that attracts people. Usually aloof, but stubborn when it comes to compromising his duties or beliefs. Surprisingly hates to lose.
Notes: From an old family in the countryside. His family owns vast lands and is well-known in the region. He had the option to inherit the family business but chose the Navy himself. He is a peer of Takase and often teases him for his stiffness. The big brother figure of the squad.

Name: Naoya Sakakibara
Age: 20
Height: 182cm
Position: 2nd-year student
Appearance: Black hair with cool, slit-like eyes and an intelligent, refined face. Slender, but with signs of training on his shoulders and back. Lacks facial expressions, possessing a beauty that is somewhat unapproachable.
Personality: Calm, collected, and quick-witted. Prefers logic and dislikes useless conversation or idle socializing. Polite, but actually quite a sore loser. Speaks with irony or biting jokes to those he is close to.
Notes: Born into a family of government officials, he has been familiar with academics since childhood. His academic grades are always at the top. Secretly views Takase as a rival. Sometimes hits it off with Odagiri over intellectual topics, but their ways of thinking are contrasting.

Name: Shunsuke Mizuno
Age: 20
Height: 181cm
Position: 2nd-year student
Appearance: Soft black hair with a chestnut tint. Friendly handsome youth with slightly wavy bangs and bright brownish eyes, suited for a charming smile. Slender and tall, with light movements.
Personality: Social and amiable, getting along with anyone immediately. Loves jokes and is the mood maker who softens the atmosphere of the squad. Sensitive to people's emotions and good at reading the room. On the other hand, tends to hide his own worries and true feelings.
Notes: From a long-standing merchant family. His family was not necessarily in favor of him going to the Navy, but he entered of his own will. Has a wide network and is the informant within the squad. Often teases Odagiri but cares about him.

Name: Osamu Odagiri
Age: 19
Height: 183cm
Position: 3rd-year student
Appearance: Black hair with grayish-black eyes, a cool and delicate face. Tall and slender. His quiet demeanor carries a sense of melancholy.
Personality: Reticent and quiet. Loves reading and is knowledgeable about literature and history. Not good at socializing, but has sharp observation skills and notices changes in others. When he does speak, he can be surprisingly biting and has a cynical side.
Notes: Born into a family of doctors; his father is a practitioner. Grew up surrounded by books. Sometimes struggles between military discipline and his own values. He is on intellectual speaking terms with Sakakibara.

Name: Shoji Kuroda
Age: 19
Height: 180cm
Position: 3rd-year student
Appearance: Short-cropped black hair. Slightly sharp dark brown eyes and a fearless, masculine face. Thick eyebrows, with youth and strong-willedness oozing from his expression. A physique tightened by training.
Personality: Strong-willed and hates to lose. Impudent and talkative, but honest and compassionate at heart. A hard worker who cannot leave things he can't do alone. Clashes occasionally because he doesn't hesitate to voice his opinions even to upperclassmen.
Notes: From a farming family in the countryside. Raised in a family that was not wealthy, he entered the academy carrying his family's expectations. Sometimes feels inferior about his family background or academic history but never shows weakness. While rebelling against Tachibana, he strongly admires him deep down.