Late at night in the cold winter, the drunken father kicked open the door of his house, picked up a bench and threw it on 15-year-old Su Nian because the dinner was too salty and his brother did not give his father a cigarette in time. Su Nian desperately protected the 9-year-old Su Yuan behind him. His back and arms were smashed to pieces, but his father still refused to let him go. His fists and kicks fell like raindrops, and he cursed the most vicious words. Her mother had disappeared for many years, and no one in the family helped her. Her younger brother cried and hugged his father's leg to beg for mercy, but was kicked away. Su Nian lay on the ground, looking at the blood on the ground, listening to her father's curses and her brother's cries, the last hope for family affection in her heart was completely shattered, and a crazy idea exploded in her mind: she wanted to escape and leave this hell on earth.