Betrayed by the Blood of My Blood

I picked up a boy from a pile of corpses. For ten years, we shared each other's joys and sorrows. I shielded him from countless beatings by my father and stepmother.
Big Sis and I entered the palace as consorts. One of us had to be chosen for burial with the Emperor.
The boy had long since become a powerful official.
Dressed in his brocade robe and jade belt, he presented a white silk cord.
'Soph is afraid of pain.
'Big sister, you're not afraid.'
Big Sis's given name was Sophia Green.
He sent me to my death with his own hands.
When I woke again, the spring sun of the 11th year of Longqing shone on my face.
The puppy-like boy clung to me.
'Big sister will never leave me, right?'