It is one of the numerous adaptations of 2021 check the lineup of webtoons to be adapted into drama in 2021 here.
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In the 2021 South Korean television series , which follows the story of a 70-year-old retired mailman Park In-hwan attempting to learn ballet and dance Swan Lake despite his deteriorating Alzheimer's condition, Song Kang had to learn ballet for about six months in preparation for his role as Lee Chae-rok, a ballet dancer who struggles financially and works part-time at a café.