Thus, the little girl became Gu Nanyi's son's mobile blood bank.,As he uttered the last word, Gu Nanfei's face was contorted into a demonic grin. "This is the final time. Take more blood! After the surgery, my son's body will be very weak and need plenty of blood to nourish him.",Gu Nantian pretended not to see, instead he went to the little boy's side, with a loving expression on his face. "Son, don't be afraid of the pain later, after this surgery, you'll have a healthy heart."。