There was actually another reason why Nora had deliberately revealed in Roxanne's live-stream that she wasn't Henry's daughter, and that was—the man who had shared an intimate relationship with her mother back then would surely become suspicious, right?
With the existence of a daughter like her, he would surely give himself away at some point. Therefore, she had been extra vigilant the last few days.
The pain in her shoulder during the collision just now was clearly used to disguise the pain from plucking out her hair. Unfortunately for them, her senses were very keen.
As everyone would know, the hair itself was useless in DNA tests. Rather, the part that was used in DNA tests was the hair follicle attached to the strand of hair.
The young man currently had two strands of her hair carefully pinched between his fingers as if he was afraid of contaminating the hair follicles. Obviously, he was intending to use them in a DNA test.