Duoduo has been living closely with Ruan Peifan for four years. Even though heaven knows he isn't her biological dad, Duoduo still loves him very much—four years of feelings don't grow for nothing.
As for Ruan Peifan, at first he liked Duoduo because of "love me, love my dog"—he loved Jia Xuan, so he treated her daughter kindly. But now, he simply loves Duoduo. This little girl has been calling him "Dad" for four years; deep in his bones a feeling has long since taken root, not quite family, yet even deeper than family.
Over these four years, he's been constantly trying to find a way to cure Duoduo. Unfortunately his abilities are limited; though he is also a doctor, his medical skills can't compare to Jia Xuan's.
He came especially today to see Duoduo. Jia Xuan said she was coming to consult Qin Qingnan, to see if he had any way to save Duoduo. Ruan Peifan was terribly worried, so he came as well.
