Thus, the little girl became Gu Nanyi's son's mobile blood bank.,Day after day, the little girl's body grew weaker and her small face paler.,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."。