C576 There's Something else

On the second day after Rong Hanchi left, Feng Baiyi asked Feng Nan to go to the guest room to collect Rong Hanchi's blood samples. He had shed so much blood that day. Although he had cleaned it up, there was still some blood that could not be washed away.

There happened to be cotton balls in the apartment that Su Yan did not throw away when her back was broken