The older child takes the younger child together to chase their dreams, and the younger child's happiness is completely lost. The older child looks helplessly at the younger child's pain, and can only provide a young shoulder. For the younger child's happiness, the older child chooses to grow up, but there is a gap of 7 years, and they are not allowed to meet each other. The younger child becomes an older child who has gone through vicissitudes of life, and the older child becomes a wandering harbor...