Empty nesters refer to the middle-aged and elderly people whose children are at home alone after leaving home. Until today, the proportion of empty nesters is increasing, and it has become the norm for the elderly to keep "empty nests" alone, which has attracted people's attention. This work takes the empty nest elderly as the theme, combines reality with memories, evokes people's deep memories, calls on people to accompany the elderly in the family, cares about the physical and mental health of the elderly, and promotes our excellent traditional virtues of respecting and loving the elderly. This film tells the story of an empty nest old man who falsely hopes for the reunion of his children and grandchildren. The character design style is cartoon and lovely style, the picture is mostly warm colors, and the interior layout refers to the furniture in real life, so that the animation is closer to life. The theme of the work is to call on people to care for the elderly at home and give their families more real company. "Reunion" is not just about eating together during the Chinese New Year, but paying more attention to the elderly, so that they can feel the warmth of the family, instead of the children facing the cold electronic equipment, sitting on the dining table with the elderly and playing with their mobile phones. "Reunion" is not a real reunion, lacking humanistic care for the elderly. We should do our best to reduce the loneliness of empty nesters and contribute to the construction of a harmonious society full of human warmth.