Ji Tingyu probably cut off another piece of his arm to make the act more believable!
When Ji Tingyu fell off his horse, it was a hard fall. He opened the bundle stained with his blood and handed it to Bai Qingyan, gripping her hand tightly to assure her.
Ji Tingyu's veins bulged on his forehead. "My lady... I was ordered to deliver winter clothing to the Duke of Zhen and his men in the southern regions. At Chongluan Ridge, we encountered assassins trying to kill General Fang Yan from the Tiger Camp! We fought to the death to save General Fang Yan..."