第 14 集: Rei 探索傳統與非洲樂器，以豐富 Happy Around 的音樂曲目。

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Hoping to expand Happy Around!'s musical style, Rei expresses interest in trying different instruments. She initially plays traditional Japanese instruments like the taishōgoto, shakuhachi, and ōtsuzumi to great success, but the others raise concerns like the difficulty in incorporating them into their songs. Rinku presents African instruments for her to play, which ultimately prove popular with fans. (Source: Wikipedia)