The Supermarket’s Back Door: My Imperial Ex Shows Up to Stockpile Supplies

[Two-way connection between two worlds + massive stockpiling + former emperor boyfriend + devoted 1v1 romance + rekindled love + farming and infrastructure + strong female lead] The back door of Lin Wan's little supermarket opens directly into an ancient dynasty. On a stormy night, a mysterious man dressed in a dark gold dragon robe suddenly shows up at her door. To her surprise, he is Xiao Heng, her ex-boyfriend, who disappeared three years ago. He holds power over the entire realm, yet dotes on her alone. The dynasty is struck by a severe drought, and medicine is in short supply. Carrying gold, Xiao Heng comes back time and again to stock up at high prices. Lin Wan quickly makes a fortune selling supplies, puts her awful relatives in their place, and helps Xiao Heng resolve court crises, stabilize people's livelihoods, and save the common folk... Across the two worlds, he protects all the people under heaven, but her most of all. In the end, this supermarket becomes his one and only home.