They've taken a corpse from the morgue and disguised him as Huangfu Xuanye while using fake data on the ECG.
The screen was manipulated to show a straight line after the assassin shot the corpse, tricking him into thinking that he had succeeded.
Even though Huangfu Xuanye was out of danger, Helian Qingyu had gotten word from the Northern Kingdom that the emperor had passed. The queen had also announced that she would take the position of the ruler in one month.
It wasn't hard to see that it was all a conspiracy to take the throne.
Helian Qingyu told Huangfu Xuanye the current condition of his country.
"Xuanye, I'm sorry to tell you this, but your father passed away yesterday."
"What? How is this possible?"
Huangfu Xuanye raised his head and looked at Helian Qingyu in disbelief.
He would not want to believe that his father, who was still healthy when he left, would just leave the living world.