A high school girl who struggles to become good at tennis. Hiromi starts playing tennis in her high school, Nishiko, because she is fascinated by an older girl, Reika Ryūzaki, who is the best player in the team and is nicknamed &quot;Madame Butterfly&quot; (お蝶夫人) because of her grace on the tennis court. The team gets a new coach, Jin Munakata, who sees potential in her and trains her to become a great tennis player. Hiromi struggles to overcome her mental weakness. Nishiko is modeled after Urawanishi High School, from which the author graduated.

A mute girl who Remi befriends. She is not deaf, the reason for her lack of speech is due to her vocal chords being damaged when she was sick.

At 3 years old, Jack is the youngest of the three Robinson children. He is well behaved and minds what his parents and older siblings tell him. He grows to be independent and fearless as his sister while on the island. He spends his times collecting rocks, learning his numbers, and playing with his animal friends.

[Profile (Haikyo)](https://haikyo.co.jp/profile/profile.php?ActorID=171) | [Wiki (en)](https://en.wikipedia.org/wiki/Makoto_K%C5%8Dsaka) | [Wiki (jp)](https://ja.wikipedia.org/wiki/%E9%AB%98%E5%9D%82%E7%9C%9F%E7%90%B4)

Makoto Kousaka

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