After My Sister Died, I Became the Grand Princess's Strategist

My younger sister went to work as a maid in the princess's residence. I never expected that, in barely a month, the guards would dump her at a mass grave! The princess's residence gave this explanation: "This lowly servant dared to seduce the prince consort, so she was slapped and sentenced to death." I quietly buried my sister, then turned around and entered the princess's residence. There, I discovered a shocking secret. 1. I was writing an article at the inn when Zhang Sheng, who had traveled to the capital with me, hurried over. "Something terrible has happened, Yanqing! Your sister is in trouble!" I put down my brush and sprang to my feet in panic. "What happened?" "Isn't my sister working as a maid in the princess's residence?" "Yesterday..."