Height 164cm Positions Right Fielder, Catcher (Baseball) Pitcher, 2B (Softball) Teams Mifune Little, Mifune East Softball Club, Seishuu High Softball Club, Kyowa U's Softball Club Kaoru is in Goro's class in elementary school and eventually begins to play little league baseball on the Mifune Dolphins Little League after an argument with Goro where she sees his passion for the game.

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In Junior High School she switches to softball and becomes captain of the Mifune East Junior High team. Initially she plans to follow Goro, whom she has a crush on, to Kaido High School. However, she changes her mind after she discovers Kaido does not have a softball team and after Goro tells her to follow her love of softball.

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After high school, she attended Kyowa University. In which during the winter break of her freshman year Goro confesses his love to Kaoru. Kaoru accepted the confession and they start going out.

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She marries Goro and becomes Kaoru Shigeno. They later have two children; Izumi and Daigo. She stays at home as a housewife.