There is a bag placed at the burial site of Lee Soo-hyun.Cui Yingmin asked Song Minya to come get the money, and Song Minya came to get the money from time to time. One day, the bag was missing! Cui Yingmin suspected Song Minya of stealing money, but Song Minya denied it and was beaten.Song Minya really stole the money and ran away, and all this was seen by Xia Bin (the hero's daughter).Xia Bin watched Song Minya put the money into the locker.Xia Bin followed and monitored Song Minya and Cui Yingmin, and she wanted to kill Song Minya.

Song Minya and Park Jiyeon stole mobile phones on the subway, and Xia Bin covered them.After getting off the subway, Xia Bin quickly ran out of the subway station, turned back, and told Song Minya that there were police outside the subway station, dragging Song and Park. Xia Bin wanted Song's phone number, but Song refused.Song got into a fight and took the opportunity to kick Song's cell phone under the bed.After Xia Bin came out of the police station, he returned to the hotel and got Song's mobile phone.Xia Bin installed the location on Song's mobile phone and asked Song to meet.Team leader Wu asked the male protagonist where the evidence came from.The male protagonist did not reveal his daughter, but first asked Team Leader Wu to find Lee Soo-hyun.Before the hero returns home, he learns that White Bones is Lee Soo Hyun.

The male protagonist asked his daughter to surrender. Xia Bin reported the male protagonist to the police for domestic violence. The police took Xia Bin away and sent her to a protective agency.Cui Yingmin was released, and Xia Bin reminded him that there was police surveillance.Choi Young-min wants to find the person who betrayed him. Choi Young-min was taken back to the police station again because of Lee Soo-hyun, and other people who ran away from home were also taken away for investigation. The girl who told the truth is not there!!! The male protagonist asked the landlady for information about the dead girl.The landlady said she didn't know, and the male protagonist was somewhat suspicious of the relationship between the landlady and Cui Yingmin.

The landlady once saw Lee Soo-hyun being locked up! Cui Yingmin threatened the male protagonist in the toilet and interrogated Cui Yingmin to make Cui Yingmin spill the beans.There is no evidence, Cui Yingmin was let go again! Cui Yingmin and the landlady police went to the school to investigate, but Li Xiuxian's teacher did not tell the truth.Goo Dahong and Li Yuzhen went to Li Xiuxian's house to investigate. Li Xiuxian was domestically abused by his father! They also found a photo of Li Xiuxian and a girl, but the other girl's face was scratched in the photo.

Lee Soo-hyun’s teacher and landlady! The male protagonist checked his daughter’s phone number and found that his ex-wife had two mobile phone numbers. He called the number he didn’t know, and the phone sound came from the drawer of his daughter’s desk.The male protagonist opened the drawer, and the screen saver on the phone was a photo of Lee Soo Hyun and his daughter! Xia Bin helped Cui Yingmin escape from police surveillance and made an appointment to meet at Lee Soo Hyun's burial site.Cui Yingmin blackmailed Xia Bin’s mother! (The money Song Lai took was all for blackmailing Xia Bin’s mother, right) Cui Yingmin showed Xia Bin a video, it was her mother who buried Lee Soo Hyun!

Episode 4, I was confused when I watched it. I thought Jang Ha Bin (the hero’s daughter) was avenging Lee Soo Hyun, but I didn’t expect that there was also something about Xia Bin’s mother! What happened to Xia Bin’s mother? There was something wrong with that male teacher, too.Just a random guess, the male teacher harmed Li Xiuxian and told Xia Bin's mother that it was Xia Bin who did it.Xia Bin's mother believed it and was secretly photographed by Cui Yingmin while disposing of the body. She was blackmailed and couldn't bear it anymore, so she committed suicide!