Watch Kylie Jenner meet Caitlyn for the first time

Of Caitlyn Jenner’s 10 children, Kylie Jenner was the one who seemed to have the roughest time accepting that her parent was transgender. The first episode of Cait’s eight-part documentary I Am Cait captures Kylie’s sweet reaction when she sees Caitlyn for the first time.

“Kylie’s the one we’re really worried about,” Caitlyn said in a Keeping Up With the Kardashians episode earlier this year. “She’s having a hard time dealing with this. I do everything I can to try to stay in touch but she doesn’t want to talk about it. She’s just shut me out lately.”

“My big concern is just that we’ve had such a close relationship for so many years and my kids are everything to me. I don’t want her to go away, emotionally.”

“I do want to meet her,” says to the camera in a preview clip. “It will be a little bit uncomfortable in the beginning, but I think we’re both ready.”

“You look so pretty!” 17-year-old says when sees her father as a woman for the first time in person.

I Am Cait airs Sunday night at 8 pm EST on E!