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Be Still My Heart·두근두근 두근거려
A teenager named Su-Gu, who has a secret fascination with swimsuits, is caught spying on the girls’ water polo team by his homeroom teacher. As a consequence, he is forced to pretend to be a girl and join the team. Though hesitant, he agrees and begins to realize that the sport involves more than just being around girls in swimsuits. Over time, he may come to understand why his heart seems to beat differently.