The fourth son of Grand Tutor Song, the current powerful chancellor. He is exceptionally talented, known as a unique talent and a peerless gentleman, unmatched in the world. He is of noble status and high reputation in Shangjing. He becomes the target of marriage selection, with Emperor Xuanren planning to betroth him to his beloved princess Yuan Zhen. Consort Mei reveals this to her daughters, warning them not to think of him. Song Pu himself does not appear directly in the provided text but is frequently mentioned as a desirable match, representing the political marriage situation.