Chisato Fujii, the second daughter of Fujii, was a former classmate of Goro Shigeno at Seishuu High School. She is part of Daigo Shigeno's circle of friends and joins the junior baseball club with him. Chisato has black hair and stands slightly shorter than Tao Sagara but taller than Daigo Shigeno. Her personality is kind and polite, often maintaining a quiet demeanor, yet she shows flexibility and adaptability during baseball games. Chisato shares her closest bond with Anita Kabashima, demonstrating unwavering loyalty; she actively encourages Anita not to quit the team despite Anita's initial critical remarks. A playful side occasionally surfaces, like when she teases others by joking that Daigo and Anita are on a date before clarifying it's just a joke. Within her family, Chisato deeply admires her older sister, Chiyo Fujii, the tallest member of their baseball club. This admiration inspired Chisato to start playing baseball herself. Her sibling dynamic sometimes leads Chisato to act like an annoying younger sister, though her actions stem purely from affection and admiration for Chiyo.