Just like Shen Nong tasting many herbs, Yan Ling had attempted to use taste to determine the properties of medicines when she was studying traditional medicine.
But to determine toxicity through blood, this was her first time!
Her eyes closed, she carefully distinguished the contrasting tastes in the blood.
When she exhibited such an outrageous act, the man in the suit smirked, mocking, "I've heard rumors of vampires in Country Y before, but I never thought I'd see one today, it's an eye-opener!"
Selena watching this scene was becoming unsure of herself.
Although she wasn't a doctor, she knew that blood tests required professional equipment.
This method of tasting blood was unheard and unexpected!
Could he really determine what kind of poison her grandfather had been afflicted with?
Just as Selena was uneasily contemplating, Yan Ling finally opened her eyes, her expression that of someone who had expected the result.