Summer came, and because of the change in Dad's work, the three siblings had to leave the familiar home for the city. Before leaving, they played by the river again, climbed the mountains once more, saw the market again, and said goodbye to their little friends. Their hearts are filled with reluctance for their hometown, anxiety about a new environment, but also the expectation of a new life. Follow the children's footsteps and walk into a world full of natural wilderness in summer.