The girl picking lima beans is presumably Kim. This reference to Kim and her lima beans reminds readers of how, in the first chapter, the lima beans symbolized hope. They seem to hold similar symbolic significance for Sae Young, as they make her more willing to quietly participate in society for the first time in two years. It’s also telling that she feels safe in the garden, even if the city feels severely unsafe. Being in the natural world, surrounded by people who also want to grow vegetables and be around others, is fundamentally comforting.