Satoko Katsuta is a female navigator of the destroyer Harekaze in High School Fleet, known by the nickname Sato-chan, her large hoop earrings, her Iyo dialect speech style, and her motto, "Promises are as strong as iron."
Satoko Katsuta serves in the Navigation Department as a navigator aboard Harekaze.
She is usually stationed in the chart room directly below the bridge.
When Rin Shiretoko leaves the bridge, Satoko takes over the helm as a backup helmswoman.
She is also one of the few Harekaze crew members who hold a medium skipper license.
She has a brisk, no-nonsense personality.
Her speech is marked by the Iyo dialect of her home region, and she habitually ends her sentences with a distinctive verbal tic.
Name: Satoko Katsuta
Gender: Female
Nickname: Sato-chan
Affiliation: Navigation Department
Position: Navigator
Birthday: October 1
Birthplace: Matsuyama, Ehime Prefecture
Height: 160 cm
Blood Type: O
Voice Actor: Chisato Satsuki
Hobbies and Special Skills: Russian language, Russian culture
Favorite Food: Pirozhki
Disliked Food: Sweet potatoes
Favorite Color: Silver
Strong Subjects: Politics, economics, social studies
Weak Subject: Chemistry
Favorite Saying: Promises are as strong as iron
Personality Traits: Frank and straightforward
Qualifications and Achievements: Class C maritime officer certification, Class 2 small craft license for Class C vessels, also described as a medium skipper license
Satoko is recognizable for her large ring-shaped earrings.
Her overall impression is cool, practical, and easygoing.
She speaks in the dialect of Ehime, specifically the Matsuyama area.
Because she spoke that way until middle school, the habit still naturally appears in her speech.
Satoko has a refreshingly blunt and matter-of-fact personality.
She tends to be calm, capable, and not overly dramatic.
Although she works in a technical role, she is not stiff or distant.
Her casual attitude makes her approachable, and she often helps others when she has free time.
Her main duty on Harekaze is managing nautical charts and calculating routes in the chart room.
Compared with some other positions, this can be a relatively quiet assignment during normal operations.
Because of that, she sometimes rotates into steering duties in place of the navigation chief.
She also helps other members of the Navigation Department with their work.
In combat, however, her workload becomes much heavier.
At those times, even dealing with Isoroku can become a challenge, because he gets in the way when he is playing around.
Satoko is one of only four crew members aboard Harekaze who possess a medium skipper license.
This qualification requires more than one year of experience after obtaining a basic small craft license.
Her credentials show that she is more than just a chart specialist.
She is trusted with actual ship handling and can take the helm when needed.
Satoko is especially knowledgeable about Russian language and culture.
This interest comes from her family background.
Her parents previously worked in ocean-related and trade-related jobs.
Because her family home was connected to trade, she grew up surrounded by Russian picture books and toys.
That early exposure shaped both her hobbies and her tastes.
Her favorite food, pirozhki, reflects that strong fondness for Russian culture.
Satoko is from Matsuyama in Ehime Prefecture.
Her path toward maritime school began in childhood.
Her family owned a boat, and she often played on it when she was young.
That experience inspired her to aim for a maritime education and eventually a role at sea.
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