Lee Kang-soo, a health care worker who was immersed in grief because of his wife's death, then came to the hospital to visit the insured who had been hit into a vegetable and smiled. She found that she had no family and only friends, but her friends were not willing to make peace, so the insurance company felt relieved. Li Jiangzhu, who was handling a case in the hospital, suddenly saw the spirit of a smile. He, who had been able to escape, knew the story of smiling in the past, and decided to help her finish it. Apart from finding her birth mother, can the little hope in the heart of another smile be realized?
6.4
