With the investigation leading up to this point, the whole context of the matter became clear.
Seven months ago, around the fourth month since the Abyss Descent, Chen Xuesong received an invitation from the Creator Organization.
Moreover, the Creator Organization offered him a deal he couldn't refuse, which made him agree to join the organization.
Afterward, the Creator Organization demanded that Chen Xuesong leak the scientific research data from the Biological Energy Research Institute.
Chen Xuesong didn't wish to betray his country and ultimately chose to commit suicide.
Although Xie Shi'en wasn't the biological child of Mr. and Mrs. Chen, he had been raised by them. Following Chen Xuesong's death, he began to investigate the matter and then assumed the identity of 027, infiltrating the Creator Organization.
This undercover period lasted for half a year.
Which is to say, the 027 that Lu Heng had been in contact with from the beginning was Xie Shi'en.