In "Big Mouth" Episode 14, everything aligned according to Park Chang Ho's (Lee Jong Suk) plan, and did everything to win against Choi Do Ha (Kim Joo Hun).

'Big Mouth' Episode 14: Park Chang Ho Negotiates With Chairman Kang

Park Chang Ho finally met Chairman Kang. The lawyer mentioned that he needed his help. He discussed NK Chemicals and how he could help the chairman clear his name.

The chairman was impressed by the lawyer and got him intrigued at the same time. He invited him and his wife, Go Mi Ho (YoonA), to his upcoming birthday party.

On the other hand, Choi Do Ha (Kim Joo Hun) was not in the mood after hearing about the negotiation between his nemesis and the chairman.

Go Mi Ho Visits Tak Kwang Yeon in Jail

After learning about the secret factory, Go Mi Ho went to Gucheon prison and visited Tak Kwang Yeon (Yoo Tae Joo). She asked about the secret factory, but he told her not to do anything against the factory as it would be dangerous for her. Her questions were left unanswered.

However, Kwang Yeon asked for a favor from her - to know whether his mother received the bone marrow transplant. Go Mi Ho looked for his family and was shocked to find out that Tak Kwang Yeon's mother had already died.

Choi Do Ha Forms Alliance With Park Yoon Gab

Choi Do Ha find out that Park Yoon Gab is under Park Chang Ho. He then made an offer to him in return of killing the lawyer. The ex-warden then showed his interest in Choi Do Ha's offer.

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On the other hand, Go Mi Ho and Mr. Go discovered that Choi Do Ha's real name was Cho Sunghyun, the grandson of Cho Hae Soo, NK Chemical's former lab director.

Choi Do Ha changed his identity to stay by Mr. Kang's side. Park Chang Ho realized Choi Do Ha wanted revenge for his grandfather's death.

Park Chang Ho Goes Head-to-Head Against Choi Do Ha

Go Mi Ho attended Chairman Kang's party alone since Park Chang Ho had a sudden commitment to attend.

Choi Do Ha received a call from Yoon Gab, who informed him that Chang Ho would die soon.

Later on, the mayor got direct feed from Park Yoon Gab's murder of the lawyer. Jerry (Kwak Dong Yeon), who came out of the car trunk, immediately called Soon Tae to tell him that Park Yoon Gab betrayed them.

Park Chang Ho told Park Yoon Gab that Choi Do Ha would soon betray him. But he was not in the mood to listen. He took his gun and shot Park Chang Ho.

Choi Do Ha, who was watching the scene, was overjoyed seeing the lawyer's end.

Later on, it was revealed that it was just a ploy.

Park Yoon Gab's kept his loyalty to Park Chang Ho. The lawyer went to Chairman Kang and informed him about Choi Do Ha's real identity. Mr. Kang was surprised but thanked Park Chang Ho for letting him know.

Chairman Kang called Choi Do Ha to come over, while Park Chang Ho immediately went to Go Mi Ho and told her everything was planned.

The chairman waited for Choi Do Ha, who promptly killed him and got a hand on his will.

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Shai Collins wrote this.