Li Rui, a social programmer, died suddenly after working overtime for seven consecutive days and was reborn as the most useless nephew of Emperor Taizong Li Shimin of the Tang Dynasty - King Li You of Qi. The original owner was arrogant and domineering, and had just been sentenced to death for treason. Li Rui opened his eyes and faced a dead end, but was accidentally bound to the [Eternal Emperor Auxiliary System]. The goal of the system is to let him assist Mingjun and leave his name in history. But Li Rui just wants to survive, make money, and enjoy life. As a result, a system that wanted him to "assist the wise king" and a prince who just wanted to "be a salted fish" began a hilarious daily routine of torturing each other every day.