The father of a single-parent girl, Wen Ying, appears in an online relationship, and he moves into her home with his perfect son, Lu Chao. Two families are crowded under the same roof. One is a little hedgehog who is ignored by his father, and the other is a puppet controlled by his mother. At first, the two were tit-for-tat, but they touched each other's deepest wounds during the trial - she healed his obedience with bravery, and he used gentleness to resolve her sharpness. They are each other's only light in the darkness. When the two opened their hearts to accept each other, Lu Chao was forcibly taken away from Qingcheng by his mother, and the two completely lost contact. Can two lonely souls who have been let down by their original families wait until the spring that belongs to them?