Shi Mingyue accidentally transmigrates to a frozen world three hundred years in the future, where food has vanished and humanity scrapes by on nutritional supplements. She meets a weapons expert who has been forgotten by the age, and together they begin helping each other across time: she sends him food to solve his struggle for survival, while he crafts a custom weapon for her to protect her on her adventures. But as the secrets of cancer drugs and youth potions are revealed, an even greater conspiracy comes to light... With the robot Xiaomei by their side, can they break free of time's constraints and save the fate of both worlds?