Wei Qingyan, a female general who disguised herself as a man and protected her country, dies in battle but is miraculously reborn. She becomes a guide who helps the spirits of the dead resolve their grievances. Under the assumed name Chang Qingnian, she borrows the identity of Marquis Du Xueyi and returns to the capital. As she helps the dead settle their grudges, she gradually uncovers the truth behind the tragic deaths of the past. Prince Rong, Shi Yu, secretly assists her all along. Having recognized her true identity long ago, he silently protects her.