|Seidou High School|
|Bats: -||Throws: -|
|Date of birth||22 April|
|Education||1st Year High School (debut)
2nd Year High School (current)
|Anime||S1 - Episode 4|
|Voice Actor||Yurika Endō (Act I: S1 - S2)
Ayane Sakura (Act II)
Yoshikawa is a clumsy young woman. As a result of her clumsiness, she often makes more work for her seniors sometimes making them angry with her. She is also somewhat shy. Despite her admiration towards the team, she finds most of them too intimidating to speak to.
Relationship with other charactersEdit
She gets a little depressed, because she thinks that she is only a nuisance for others, but then she witnesses a quarrel between Sawamura and a teacher during class. Haruno is totally impressed by him, because even though he got laughed at for stating his goal in front of everyone, he still works hard towards his goals. She says that she really likes people who are "as stupid" as him.
She reveals that there’s one thing she has always wanted to do: "support the players who are working their hardest to reach their goals." 
Sachiko and Yui are Haruno's fellow team manager. Because of her clumsiness, Haruno often causes more work for them, which leads to them getting angry sometimes. But after some initial difficulties they get to know each other really well and start to work together as reliable teammates.
Takako is Haruno's reliable sempai. It was a tearful farewell when Takako and the other third years retired. Like Takako, Haruno is the lone team manager of her generation.
- Yoshikawa (吉川) - Lucky River
- Haruno (春乃) - Of Spring
|Seidou High School|
|Miyuki Kazuya • Maezono Kenta • Kuramochi Yōichi • Kawakami Norifumi • Asou Takeru • Nakata Ataru • Ono Hiroshi • Higasa Shōji • Seki Naomichi • Yamaguchi Ken • Kijima Rei • Kawashima Kengo • Shirasu Kenjirō • Mimura Ryōta • Watanabe Hisashi|
|Sawamura Eijun• Furuya Satoru • Kominato Haruichi• Kanemaru Shinji • Tōjō Hideaki • Kaneda Tadahiro|
|Yui Kaoru• Yūki Masashi • Okumura Kōshū• Mogami Takeshi • Asada Hirofumi • Seto Takuma • Kuki Yōhei
|Former players||Yūki Tetsuya • Tanba Kōichirō• Kominato Ryōsuke• Masuko Tōru• Isashiki Jun • Miyauchi Keisuke • Sakai Ichirō • Kadota Masaaki • Kusunoki Fumiya • Takigawa Chris Yū • Azuma Kiyokuni
|Managers||Fujiwara Takako • Umemoto Sachiko• Natsukawa Yui• Yoshikawa Haruno
|Staff||Kataoka Tesshin • Ochiai Hiromitsu • Takashima Rei • Kazuyoshi Oota|