As the festival draws near, the boys are intensely focused on fine-tuning their band performance. Meanwhile, Eun-gyeol reflects on a pivotal clue related to a potential accident leading to hearing loss. Believing Dong-jin to be the helper that Master mentioned, he pleads with Yi-chan to skip the rehearsal, but his request is dismissed. Meanwhile, Eun-yu grapples with the challenge of uncovering her mother's genuine first love.
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