The Snow Falls Half on the Dendrobium Spring

A simple beauty and a down-and-out prince meet and agree in a difficult situation. He betrays her for the sake of the world. She gives birth to a child and decides to leave and marry another. A few years later, the two become political enemies and meet again... It's sweet and sadistic, with an affectionate and sinister male protagonist + a funny and cute second male lead + a perfect second and third female lead, as well as special supporting characters.