"Gu Family Book" Lee Sung Jae drinks the poison poured by Lee Yoo Bi and dies.

June 25, the last episode of the MBC drama "Gu Family Book" featured Jo Kwan Woong (Lee Sung Jae) poisoned by Park Chung Jo (Lee Yoo Bi).

After Dam Yeo Wool (Bae Suzy) dies and Choi Kang Chi (Lee Seung Gi) leaves, Park Chung Jo murmurs, "First love matures a person and their last love completes them. Kang Chi seems to have become complete."

Park Chung Jo visits Jo Kwan Woong at the jail. Park Chung Jo pours a drink for Jo Kwan Woong and says, "I want to give you something to drink before you leave. End your pathetic life."

Jo Kwan Woong says, "Why are you being kind to me?" Park Chung Jo replies, "I am only trying to end your life with my hands." Jo Kwan Woong drinks the alcohol and says, "It was such a disappointing life. It was so boring and meaningless. I wasn't trying to be greedy. I just wanted to feel alive."

Soon after, Jo Kwan Woong spits up blood and dies.