The camera goes back to Sijiang's memories, showing her hard work and selflessness for her family.She specially prepared wine for Young-won and Jae-jin’s anniversary without any ill intentions.She even personally visited Yingyuan's mother to give gifts and emphasized the importance of family happiness.

Back to reality, Sijiang received a mysterious text message leading her to the vacation home.However, she suffered a sudden attack, and the appearance of a masked man made the situation confusing.When Yingyuan rushed to the scene, she was shocked to find Sijiang next to the murder weapon and secretary An lying in a pool of blood.Although Sijiang insisted that he was not the murderer, the two were still taken away by the police to assist in the investigation.As they were leaving, a meaningful look was exchanged between the police officer and Se Na.

During the investigation, both Sijiang and Yingyuan insisted that they were innocent.After a series of investigations, Yingyuan was released, while Sijiang was listed as the main suspect due to evidence at the scene and continued to be detained.During the visit, Sijiang revealed to Yingyuan that the person who attacked her was a man, and Yingyuan vowed to clear her grievances.

At the same time, the meeting between Tai Wu and Dr. Wu was even more undercurrent.Tae-oh subtly hints that Jae-jin would have been freed long ago had it not been for Si-jiang's fault, thus stimulating Dr. Oh's hostility towards Si-jiang.

At Cui's house, Jae-jin expressed his sincere apology to Young-won, and the two decided to work together to overcome the current predicament.Yingyuan's younger brother Yingmin and Zaizhen's aunt came after hearing the news and were shocked by Sijiang's arrest.Jiang Cheng also learned about this. He visited Si Jiang and promised to find strong evidence for her to prove Se Na's crime.

The police subsequently visited Cui's home and interviewed family members and employees who had close relations with Sijiang.In order to cooperate with the investigation, Yingyuan temporarily dismissed all employees, including Taiwu.When Tai Wu left, he suggested to the police to question Dr. Wu. During the inquiry, Dr. Wu actually said that Si Jiang had the ability to kill.

Under Jae-jin's detailed explanation, Young-won gradually unveiled Taiwu's lies.Jae-jin revealed that he met Tae-oh while receiving psychological counseling, and Tae-oh tried to manipulate Do-hyun into thinking that his family could not understand him.This discovery made Yingyuan deeply suspicious of Taiwu.

Based on Dr. Wu's testimony, the police issued an arrest warrant for Sijiang.During Yingyuan's visit again, the two strengthened their determination to protect their families.At the same time, Jiang Cheng was investigating near the holiday home and found that a man entered the villa on the day of the crime.

Under the leadership of Jae-jin, Young-min and Seung-jae conducted an in-depth investigation into Tae-oh's university background and revealed that the real Tae-oh was not this person.Young-won checked her patient files and discovered a child named Oh Ji-hwan who was suffering from mental illness due to domestic violence.After further investigation, they discovered that Taiwu's real name was Wu Taihuan, and he was the brother of Wu Jihuan in Yingyuan's patient file.

Jae-jin's team visited the orphanage that Se-na often visited and learned that Tae-oh, who goes by the pseudonym Thomas, was also a frequent visitor there.After connecting a series of clues, they confirmed Taiwu's true identity and realized that he was the brother in Yingyuan's patient file.Yingyuan received a portrait of the suspect, which exactly matched Taiwu's appearance. She was convinced that Taiwu was the real murderer.

The nun informs Se Na about Jae Jin’s visit.During Se Na's meeting with Tae Oh, she revealed the two's plan to jointly bring down Young Won.However, Secretary An's death was Taiwu's unilateral decision.Se Na persuades Tae Oh to escape, and he reluctantly accepts the advice.

However, just as Taiwu was about to board the departure bus, he received a text message from Daoxian: “You are right.My mother wouldn't accept me.Come here and save me.” Taiwu mistakenly thought that he had successfully manipulated Daoxian, so he got out of the car and headed to Cui's house.However, this text message is actually a trap to lure Taiwu.At the same time, Se Na placed key evidence in Tae Oh's apartment and anonymously reported it to the police.At Cui's house, Young-won has a fierce confrontation with Tae-oh, and she reveals all of Tae-oh's secrets and real name.