Surviving the Famine! My Farm Levels Up Without Limits, and Even the Emperor Kneels

[Strong female lead + older woman/younger man romance + escape-from-famine survival with a spatial realm + hope of the whole village] Yu Chenxi transmigrates from the modern world to an ancient land in the grip of famine. Her soul inhabits the body of a young girl whose entire family has starved to death. She thinks she'll slowly starve to death in a thatched hut, but the farming game she played before transmigrating comes with her and becomes an independent spatial realm. All the crops inside grow at an accelerated rate. Potatoes, corn, and other crops keep multiplying. Outside the space, famine rages; inside, she's nearly buried beneath mountains of food. "Ding! Main quest issued." "Help the people survive the famine! Rewards: a selection of precious pills, gold and silver mines, and the unlocking of various buildings." Yu Chenxi begins by using the crops from her spatial realm to feed a village, then a city, and eventually an entire nation. To avoid arousing suspicion, Yu Chenxi uses the System's help to fabricate one identity after another: the Valley Master of the Primordial Valley, a descendant of the previous dynasty's royal family, the leader of the martial arts world, and more. Her spatial realm keeps expanding, and more and more buildings are unlocked: a library, a weapons workshop, a modern factory... People gather around her one after another, but the one thing that never changes is the boy who was there from the beginning. She watches him grow day by day, from silently following behind her to slowly walking by her side. As time passes, perhaps even Yu Chenxi herself doesn't know when her feelings changed. Perhaps it was the countless times he took a blade for her, the shadow keeping watch outside her room day after day, or the years of companionship. Perhaps it was many other things, too.