Thus, the little girl became Gu Nanyi's son's mobile blood bank.,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.",The little boy looked at his father, his eyes flashing with excitement. "Quickly, take out her heart, give it to me!"。