During a drought year, the mother is abandoned by her husband, and brings her young daughter along on Famine Migration to seek shelter with her grandfather. When her younger sister is on the verge of starving to death, the little girl kowtows in despair, activating her Longevity Lock to travel to a modern night market. She meets a down-and-out stall owner, sticks firmly to the rule of never taking things for free, and works desperately to earn life-saving food.
