Delivery rider Quan Mancheng accidentally transmigrates into the outer sect of a cultivation world while making a delivery and binds himself to the bizarre “Mancheng Almighty System.” Its missions don’t ask him to cultivate diligently, but instead make him pull off all kinds of ridiculous stunts. For example, it has him use a takeout container to feed spirit herbs to a spirit beast during the sect tournament, or forces him to snatch the sect master’s pill furnace right in front of an Immortal Venerable and roast sweet potatoes in it. Thanks to the System’s “invincible buff,” every time he causes trouble, he ends up stumbling into an absurdly powerful reward. He goes from a useless outer-sect disciple to an elite of the inner sect, beats up the demonic cultivators who provoke him, and drives the stuffy elders up the wall. Then, during the war between immortals and demons, he uses the “Immortal Emperor-grade delivery food truck” redeemed through the System to crush the demonic army, and somehow becomes the cultivation world’s strongest Immortal Emperor, leaving everyone laughing and crying at once.