Once invaded by the Heart Demon and occupied the body, one becomes a puppet of the Heart Demon.
Liu Ya found it quite perplexing.
Such puppets should be controlled by the Heart Demon and turn into lunatics. How come they obey Chu Fengmian's commands?
"It's naturally because of the King of Heart Demons."
Chu Fengmian understood Liu Ya's thoughts, but he didn't explain.
The existence of the King of Heart Demons is known by very few, even many ancient emperors may not truly understand it.
If not, this King of Heart Demons wouldn't have stayed on Xin Hen Peak and ended up in Chu Fengmian's hands.
The King of Heart Demons not only suppresses heart demons and evokes others' inner demons, but also controls Heart Demon puppets.
If the Nine Domains hadn't once given birth to a Heart Demon True Emperor, and Chu Fengmian hadn't seen the King of Heart Demons with his own eyes, he wouldn't have known such a being existed.
