When a demon successfully completed their Coming of Age rite and awakened their Demon Heart, their chaos flame is born in their Demon Heart.
The reason why an awakened Demon Heart is very crucial to every demon is because that is when their chaos flame is born in their heart, and it is this chaos flame that truly makes a demon unique, not the heart itself.
The chaos flame is the source of a demon's power. It is their life force and their Will made manifest.
When a chaos flame is born, the demon's heart is called Flickering Heart, and as Simon observed his heart, he knew why.
Inside his heart was a flickering, small, unstable flame that looked like it would go out.
Simon would have panicked if he didn't know better, but he knew that despite this flame looking like it would go out, it would never go out as long as nothing extreme happened to him.
'My chaos flame is pale silver with a faint orange hue to it. I have a wind affinity? And... a potential spatial affinity?!'
