Bring the System to the Song Dynasty

Li Wei, who was reborn in the Song Dynasty, met Song Renzong at the beginning and was directly shown his cards by him. I had no choice but to lie about my age and accept the emperor as my younger brother. With a magical infinite synthesis system, how could Li Wei prop up the most benevolent and least existential official family of the Song Dynasty in history, so that the Song Dynasty would no longer be weak? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.