Natsumi is the student body council president—and daughter of the school chairman—who becomes the Raimon soccer team's manager after being impressed by their potential. She's best known for her strong romantic feelings for Endo and her unwavering belief that he's the best goalkeeper around.
Physically, she has long, wavy brown hair with auburn eyes and a middle-parted fringe pulled back. Her fair complexion is usually dressed in the Raimon female uniform—a cream collared shirt with a maroon ribbon and matching pleated skirt, a look that sets her apart from other managers. In season 3, fans often note her shift to a light blue long-sleeved shirt, brown shorts, and a scarf, usually carrying a brown handbag.
Personality-wise, Natsumi's helpful nature comes with a catch: she doesn't want to get her hands dirty. She initially opposed the soccer club hard, threatening to shut it down and setting impossible challenges for them to pass. It wasn't until after a few matches that she saw what the team could really do and decided to join Aki and Haruna as a manager.
During the Aliea Academy arc, she traveled with the team in the Inazuma Caravan and wasn't shy about calling her dad for support when they needed it. She was unusually comfortable working with Coach Hitomiko—even asked her to stay when she considered leaving—though her request to bring Gouenji back to the team didn't pan out the way she hoped.
Content compiled by AnimeList.moe from publicly available sources.