Modern-day overworked programmer Zhu Xiaoba dies suddenly after pulling an all-nighter and is reborn as the boy Zhu Chongba, with an Emperor Development System built in. It can switch off pain, display characters' affection levels, and give sweet potatoes as a daily sign-in reward. Armed with modern knowledge and down-to-earth flirting techniques, he carves out an unconventional path to emperorship amid the chaos of the late Yuan dynasty.