When they entered Qin Yu's head, touched her soul, and probed the depths of her memories.
Qin Yu's instinct was to resist, for if she didn't, she would truly die. She knew she would definitely die—whether or not Yin You would kill her, the Golden House Rules would surely erase her!
Yin You's face was emotionless at that time, focusing solely on invading Qin Yu's soul, forcefully and sharply penetrating her defenses to seize all of her memories.
So she could learn what kind of special power had permeated her world, and whether it would affect her plans.
Otherwise, it would be like a fishbone stuck in her throat!
She was so determined that she almost disregarded Qin Yu's life, as if she had never thought about how they had once supported each other, until they learned to trust each other from their mutual probing.
But... it was all an illusion.
A beautiful illusion drawn by acting.