When the doomsday disaster comes, God bestows three skills: fixed, repeated actions, and marking. My sister chooses fixed, and the remaining two skills belong to her sister Long Rongrong. My sister Long Rongrong senses the crisis in advance, stocks up long-lasting supplies, medicines, and water purification equipment, arranges safe residences, and marks multiple supply points. Although the younger sister has skills, she lacks foresight and does not know how to plan materials and deal with people. The elder sister Long Rongrong relies on her dual skills and thorough preparations to live a stable life. She always stays awake during the crisis, calmly copes with the difficulties with wisdom and foresight, and quietly waits for the disaster to fade away, ushering in a new life full of hope.