Xiao Tian was called upon by Empress Zi Ruoyan to be her life partner during the Great Yan Dynasty. Despite being bestowed with the "Strongest Supreme System," he rejected the offer as his sole aspiration was to be the Empress' beloved prince. Yet, the system underwent a metamorphosis and transformed into a "dog-licking system." It incessantly reminded him of his eminence as a native of Earth from a plane of high dimensions and positioned itself as his subordinate. It even alerted him to exercise caution in his behavior as he could inadvertently cause it harm.