Kim Kardashian
Kim Kardashian called Caitlyn Jenner a "liar" because of the latter's claims in her memoir. Pictured: Kardashian attends the Balmain show as part of the Paris Fashion Week Womenswear Spring/Summer 2017 on Sept. 29, 2016 in Paris. Getty Images/Pascal Le Segretain

The drama between Kim Kardashian and Caitlyn Jenner continues.

In the upcoming episode of "Keeping Up with the Kardashians," Jenner questions the actions of Kim's late dad, Robert Kardashian, who was the lawyer of O.J. Simpson. The former Olympian wrote in her book, "The Secrets of My Life," that "Robert Kardashian knew O.J. Simpson was guilty but joined the defense team to get back at his remarried ex," as quoted by Us Weekly. Jenner also claims that Robert apparently told her in secret that he "believed his friend was guilty."

After discovering Jenner's claims, Kim took a jab at her former stepfather in defense of her biological father. "It is so shady that Caitlyn came over and gave me the book and then on the phone she said, 'Well, the final version has a few more things in it. But don't worry, it's nothing about you,'" Kim tells her sisters, Khloe Kardashian and Kourtney Kardashian, and assistant Stephanie Shepherd. "So she lied to me because that is about me if it's about our dad. I have always had Caitlyn's back. She is a liar. She is not a good person."

Khloe was confused, but shut down the issue, while Kourtney said she believes that it was a made-up story to sell the book.

Jenner and most of the Kardashians have been feuding for quite some time now. Kim is not on speaking terms with Caitlyn, and the latter also has issues with her ex, Kris Jenner. However, Kim believes that their conflict will be resolved in the future. "We don't have much of a relationship, but we're family, so I do believe that this is just a phase," Kanye West's wife explained.

However, Kim confessed that in the event she would have to choose between Kris and Caitlyn, she would definitely back up her mom. "There's been so much hurt and pain with Caitlyn and my mom. At the end of the day, I'll always ride for my mom. Like, she's my mom! I love her to death," the reality star added.

In other news, Kim is skipping Paris Fashion Week this time around. Last year, the E! star was robbed and held at gunpoint in her hotel room in Paris. The incident apparently left the reality star traumatized and made her more cautious about posting her whereabouts online.

"I've learned through experience that things in real time I might change up a little bit. I might take a photo, save it, post it when I leave the place or when I'm in a different location because I don't think that worked out for me so well when I was posting every last detail," Kim said on "The View."