Shen Ning, a dual-doctorate in chemistry and medicine, unexpectedly time-travels to become a destitute and lonely woman in an ancient village. Facing extreme poverty and the misunderstandings of others, she struggles to survive in the barren countryside relying on her modern knowledge and medical skills. By chance, she rescues a heavily injured and delirious mysterious man, attentively tending to his wounds. As they spend days and nights together, romantic feelings gradually blossom. Shen Ning uses her wisdom to make white sugar and earn a living, changing her fate step by step, while the mysterious man's true identity gradually comes to light, unfolding a warm and devoted companionship that transcends status and adversity.