Park Hyung-sik overcame yet another crisis thanks to the sacrifice of his biological father, Lee Hae-Young.

In the SBS drama 'Buried Hearts' that aired on the 4th, Seo Dong-joo (Park Hyung-sik) was saved from a crisis due to the sacrifice of his father, Heo Il-do (Lee Hae-Young).

On that day, Seo Dong-joo faced Heo Il-do, who was armed with a gun. Heo Il-do shouted, "Seo Sang-moo, I'm right here" and immediately aimed the gun at Seo Dong-joo and fired. Seo Dong-joo collapsed on the spot, and Yeo Jang-seon (Heo Joon-ho) was watching this.

Yeo Jang-seon noted, "This is Seo Dong-joo's last dance" and expressed joy. He then received a call from Heo Il-do and feigned urgency, saying, "Don't shoot, junior. Seo Dong-joo is your son."

Heo Il-do approached the fallen Seo Dong-joo. Seo Dong-joo burst into laughter, saying, "What are you doing? I'm not dead yet. Hurry up and shoot, Father," wearing a meaningful smile.

Heo Il-do lowered his gun and asked back. He could not believe that Seo Dong-joo was his son and shouted, "What are you scheming this time, you bastard?" Seo Dong-joo replied, "Hurry up and shoot. I told you to kill me quickly," bringing the gun to his own head.

In the meantime, Yeo Jang-seon ordered the field team to eliminate Seo Dong-joo. However, at that moment, Heo Tae-yoon rushed in and stopped Heo Il-do. Heo Tae-yoon looked at Seo Dong-joo and asked, "Hyung, were you shot?"

Seo Dong-joo snatched Heo Il-do's gun and aimed it at Heo Il-do. However, he caught sight of Yeo Jang-seon and his men behind him, grazing the gun's muzzle, and said softly in Heo Il-do's ear, "Get lost." Yeo Jang-seon confirmed that Seo Dong-joo was not dead and withdrew the field team.

Heo Il-do, who believed that Seo Dong-joo was the son born from the affair with Yeo Soon-ho (Joo Sang-wook), was devastated upon learning the truth. In the past, Heo Il-do had asked Yeo Soon-ho to include his father's enterprise in hers. Heo Il-do remarked, "If this doesn't go well, I have to close my father's enterprise. If you help this time, I won't forget your kindness." However, Yeo Soon-ho responded, "I'm sorry for asking you to look after me."

Yeo Soon-ho said to Heo Il-do, "Stop getting close to Inspector Yeo Jang-seon at this point," and added, "I knew you wrote down the names of the kids for the inspector."

Heo Il-do asked, "What is the reason for bringing this up now?" Yeo Soon-ho replied, "Being with a person like Yeo Jang-seon is like throwing your beliefs into the trash."

Heo Il-do remarked, "Are you so perfect that you had an affair and had a child?" referring to the child of Chu Kyung-won. Heo Il-do stated, "I don't care about your affair as long as you don't touch me."

When Heo Il-do came out, he encountered Cha Deok-hee (Kim Jeong-nan), who was then the wife of Yeo Soon-ho and is now Heo Il-do's current wife. Cha Deok-hee believed that Yeo Soon-ho had an affair with Chu Kyung-won and had a child, expressing, "I can't breathe when I think of Kyung-won and the child," and added, "It's my fault. I should have married you back then," shedding tears.

Meanwhile, on that day, Yeo Jang-seon devised a scheme to eliminate Heo Il-do and Seo Dong-joo using Cha Gang-cheon (Woo Hyun), and Heo Il-do was killed while trying to protect Seo Dong-joo.

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