The program will invite four groups of different types of siblings to stay in the "beloved hut" together. In the early stage, they will start a 10-day group social trip while hiding their true sibling relationship. During this period, everyone will re-examine their relationship with themselves, others, and siblings under the gaze and spur of each other's siblings. They will also have an open mind to understand each other and meet new partners. At the same time, they will also feel the collision of family lines from siblings and glimpse the shaping power of the native soil.