So many mysteries are yet to be solved as "Adamas" episode 7 delivers shocking revelations about the case being re-investigated by Ji Sung.
As the mystery crime K-drama reached the end of its first half, new characters who played a significant role were also introduced.
'Adamas' Episode 7: Song Soo Hyun Learns About SIH's Obsession With Team A
Despite their love-hate relationship, Song Soo Hyun and Kim Seo Hee are teaming up with the SIH after knowing their mission to stop Team A led by Mr. Lee.
The duo was brought to the secret headquarters of the SIH where the investigation team head Kang Hyuk Pil is waiting for them. He revealed the connection of Team A with Haesong's chairman and dubbed the special team or the chaebol's hitman.
In addition, Kang Hyuk Pil also revealed to the prosecutor why he is so fixated on bringing down Team A; this is because several influential people like the former presidents and politicians sought help from the chairman to eliminate their enemies.
The SIH team head explained that Team A made the killings as if it was an accident to cover up their crimes.
On top of it, he revealed to Song Soo Hyun that the chairman is set to launch an armory business that would legalize the use of firearms.
READ MORE: 'Adamas' Episode 6: Ji Sung Gets Caught Up in Difficult Situation
Due to his intense investigation and mission to eliminate the group, Kang Hyuk Pil knew that his days were numbered and also warned the prosecutor that he would be one of their targets.
Ha Woo Shin's Discovery of Ms. Kwon's Secret
The novel writer was curious about how Ms. Kwon was so protective of the Chairman and thinks that it is more than just her loyalty to him.
To get more information, he bribed Ms. Kwon's right hand and the head maid Mrs. Oh who knew the ins and outs of the Haesong mansion.
With a hefty amount of money, Mrs. Oh spilled the secrets of Ms. Kwon starting with her son who committed suicide.
After doctors declared him dead, Ms. Kwon chose to donate her son's heart to the chairman. Ha Woo Shin believes that this is her way to be with her son again.
As a bonus, the head maid revealed that Ms. Yoon, the chairman's secretary, was the one who recommended him to her boss to be his ghostwriter.
Eun Hye Soo's Revelation
From Team A's mission to Ms. Kwon's connection with the chairman, "Adamas" episode 7 unveils more surprising secrets.
After Ha Woo Shin revealed to Hye Soo the person who recommended him to the chairman, she thinks that it was because of her. Since Ha Woo Shin looked similar to Kwon Minjo, Hye Soo's former lover, the secretary thinks that Hye Soo might have an affair with the writer.
It can be recalled that Hye Soo's husband is in love with Ms. Yoon but had to do the arranged marriage as instructed by the chairman.
Is Lee Changwoo Innocent?
As "Adamas" episode 7 continues, Eun Hye Soo tells Ha Woo Shin that she is certain that Lee Changwoo was innocent.
She recalled that Minjo used to do volunteer work at the prison and met Lee Changwoo. Upon learning that he was innocent of the case, he wanted to help the man get out of the crime.
However, since Minjo is digging up the dirt that his father and brother did, he ends up dead in an alleged accident.