"Gu Family Book" The Park household faces the biggest obstacle in their family history.

April 23, the 6th episode of the MBC drama "Gu Family Book" featured all the members of the Park household being framed for conspiracy including Park Chung Jo (Lee Yoo Bi).

Before Park Chung Jo, Park Tae Seo (Yoo Yeon Suk) and their mother could even begin to feel sad about the death of Park Moo Sol (Uhm Hyo Sup), Jo Kwan Woong (Lee Sung Jae) makes another move. They are all taken into jail where men begin torturing Park Tae Seo.

When people hear Park Tae Seo's screams, everybody begins to cry except Park Chung Jo. She remains strong and says, "Everybody be quiet. Don't cry. We're all going to get out of here alive."

Few days later, Park Tae Seo is given the punishment of being beheaded. His mother and his sister Park Chung Jo are to be sold into slavery.

Right as Park Chung Jo is about to be sold, Choi Kang Chi appears. He immediately tries to save Park Chung Jo but she stops him and says, "My brother is first, Kang Chi. They said they'll behead him tomorrow. If something goes wrong and you get caught too, we'll have no hope. So save my brother first."

Choi Kang Chi tells her, "Wait for me. I'll be back soon. No matter what happens, I'm coming back for you". He then kisses her on the forehead and leaves. However, at the end of the episode, Choi Kang Chi gets attacked by a group of men on his way to save Park Chung Jo.