Blood Relatives

"Are you really my grandpa?"
Even though all the evidence was clearly laid out before him, and the blood drops that had merged together were irrefutable and irrefutable evidence, he still raised his voice in doubt. It wasn't that he didn't believe it, but under the impact of this shocking fact, his chaotic brain simply couldn't accept it for a while.
"My child," Yun Canghai said with tears on his face, "I really didn't expect that I would have a grandson nineteen years ago. You inherited...