Granddaughter Yeojin and her maternal grandfather Park Jongwoong made a promise to write a letter to each other once a month in her youth. In her world, everyone lives a life having neither big problems nor disabilities. When Yeojin saw a nurse and her grandfather in hospital communicate in writing, his letters began to take on a new and deeper meaning. She begins to write back a delayed letter to him and points a camera toward him. My grandfather Park Jongwoong developed a hearing disability after a falling accident at 47 years old, and then could not realize his dream of becoming the president of a construction company. But he, even now 79 years old, dreams of a new dream every single moment. Especially when Jongwoong picks up cast-away or out of-order things and thinks of how to remake them into something useful. But her grandmother does not want him to wander outside. Grandmother Jumnam has unknown bitter feelings after having lived all her life as his caretaker. Family members come to know how they have regarded him. Her grandfather’s old diaries contain notes on his enduring his disability after the accident and his hopes towards the life he has lived. What is it that has made him the one unable to achieve things? Yeojin tries to support his dreams.