How could Luis, in the end, be old enough to hold on to William Bryan?

Vivian saw that William Bryan even beat him and roared, "William Bryan, you bastard."

"If you don't give me the antidote, I can't promise to do anything worse." William Bryan's eyes were red, and the strength of her hands gradually moved to her neck.

"Aren't you going to tell the truth yet?" William Bryan finally ran out of patience and pushed Vivian to Luis's side.

Louis, at this time, was slow, and he couldn't figure out why things had become what they were now.

"William Bryan, did you misunderstand something? Vivian just said she wanted...