Who is the white moonlight these days? We are just following the plot

My best friend and I were time travelers, bound by a system to an alternate world. We became the salvation of the Crown Prince and the Fifth Prince, marrying them both on the same day. Our wedding was kept simple, due to the fact that their mother, Concubine Gao, had a family implicated in the Qiang rebellion. The Crown Prince faced dethronement, and the Fifth Prince faced exile to the frontier. Yet, we married them anyway; the story had to unfold. Over the next five years, we assisted the Crown Prince in ascending the throne, and the Fifth Prince in becoming King of Ruiping. Three years later, our mission concluded, and we escaped with our lives. But they, however, wept until they were blinded. ...