A mother plays train with her children and it becomes the whole story. No crisis, no twist, just the weight of keeping small lives safe and happy inside ordinary moments. Winter comes and they run errands together, and that is enough. This is what comfort actually means: watching a family be a family, without needing to earn it first.

Seven young mouse siblings go about their everyday lives across three short episodes of gentle slice of life. In the first, their mother tries to keep the children happy with a pretend train game, but the fun takes a dangerous turn when they encounter a snake. In the second, a friend writes to the father asking for help in the forest, and the whole family sets out together, though the little ones quickly wear themselves out. The third takes place in winter, as the children help their mother run her errands.