A young girl faces the sudden loss of her mother. The only reminder left of her is the nail polish her mother applied not long ago. Afraid that the memories of her will fade, she stops playing in the sand and no longer plays the piano. As time passes, the nail polish gradually wears off, and she tries to soothe her heart by dyeing her nails with balsam flowers she and her mother planted last spring. However, this first experience of loss remains painful and hard to bear. Through her father’s warm advice, she finds comfort as she cuts her nails, which reflect her memories of her mother, and learns the meaning of an "enduring heart" that never disappears. This story captures the girl’s journey of healing and growth as she slowly overcomes the pain of loss.