Saori Takebe, a second-year Ooarai Girls' Academy student and core Anglerfish Team member, serves as radio operator and machine gunner. Hailing from Oarai Town, Ibaraki Prefecture, she lives in the school dormitory. Her family consists of parents and a younger sister, Shiori Takebe, with her father named Shinzo Takebe. Born on June 22, she stands 157 cm tall with blood type O. She typically wears contact lenses but switches to glasses at home or during chores, maintaining a fashionable appearance noted for distinctive black thigh highs.

Cheerful, bubbly, and talkative, Saori acts as a social facilitator and mood maker. She harbors a strong interest in romance and dating, frequently reads wedding magazines, and aspires to attract male attention through Sensha-dō despite lacking actual romantic experience. She often positions herself as a love advisor. Highly perceptive of others' emotions, she is particularly protective of Miho Nishizumi, skillfully diverting conversations to shield her from distressing topics related to family or past Sensha-dō. Saori offers reliable emotional support and practical advice, embodying a nurturing "big sister" role, especially with first-year Rabbit Team members who sometimes call her "Mama".

Saori and Hana Isuzu were the first to befriend Miho upon her transfer to Ooarai. When the student council revived Sensha-dō, Saori eagerly joined hoping to boost her popularity. However, after Miho was pressured into participating, Saori initially withdrew in solidarity, rejoining only once Miho committed. During early training, Saori briefly commanded the Anglerfish Team but proved ineffective in combat. Miho reassigned her as radio operator to leverage her communication skills. Saori secretly studied to earn a second-class amateur radio operator license, significantly enhancing the team's tactical capabilities. Her quick typing and messaging proved crucial, such as bypassing Saunders' radio interception via text.

Beyond radio operation, Saori excels in cooking, housekeeping, home economics, and practices daily yoga. She maintains detailed notes on tanks and military tactics, enabling her to visually identify enemy vehicles and decode flag signals. Her physical strength is above average, depicted handling strenuous tasks like holding teammates aloft. Despite initial struggles, she earned a tank driver's license and takes pride in her qualifications.

Her character evolves across media from romance-focused to dedicated team member. She participates in all Sensha-dō tournaments, contributing to Ooarai's victories through communication tactics and emotional support. Post-tournament, she becomes the Student Council's Public Relations Manager. In spin-offs, she navigates daily challenges like body image concerns and nurtures relationships with younger students. Her interactions show deep loyalty; she persuades Mako Reizei to stay in Sensha-dō by invoking Mako's grandmother and supports friends through personal difficulties.

Trivia notes her favorite flower is the pink rose and her favorite tank is the M26 Pershing, chosen for its "monster movie" appeal to boys. She dislikes spicy food but enjoys mild curry and chocolate French donuts. Her catchphrase "yada mo~" reflects dramatic reactions, and she connects mundane events to romantic fantasies, earning the nickname "Marriage Hunter."

Foundational relationships define her character. She coins nicknames like "Miporin" for Miho and "Yukarin" for Yukari Akiyama, maintains a childhood friendship with Mako Reizei, bonds with Hana Isuzu over shared interests, and mentors Rabbit Team members, reinforcing her role as the group's emotional anchor.