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Joo Hyun Sung, a high school student, was born with a hearing impairment. Thanks to his mother's efforts and training, he can communicate well, so at first glance, nobody knows about his disability. He wants to start a bowling club at school because it is his greatest passion. Lee Soo Ah is the most popular member of the GirlStar group. One day there are rumors of a conflict in the group, and she surprises everyone with the decision to break and start school. He comes to the class with Hyun Sung, who is a fan of her rivals from the Ellie group