Chen Fan, the owner of a milk tea shop, is left drowning in debt after his business partner absconds with their money. Unexpectedly, he unlocks a two-way passage that allows him to travel freely between the modern world and the Great Wu Dynasty. A single cup of milk tea astonishes the female emperor, while various modern supplies are revered as peerless immortal treasures. Using ordinary goods from the modern world, he quells political turmoil at court and resolves border crises. The female emperor humbles herself and insists on appointing him as her imperial tutor. Meanwhile, he brings back antiques and rare treasures to dominate the modern world, thoroughly humiliating his ex-girlfriend and wealthy rivals who once looked down on him. With wealth and power in both worlds at his fingertips, he rises to the very top in both ancient and modern times!