Arthur hadn't had this feeling in a very long time. No, Arthur had never felt this kind of pain with this much intensity before.
He couldn't recall a single moment in his life when he'd felt like this… but he did know why that was and, several times before, he'd heard it from the older phoenixes.
The peculiar concept of the muscle cramp. A human problem that was completely cancelled out by the fact that they had flame cores. Phoenixes simply had to circulate enough flame essence through their bodies and enhance their bodies to staggering degrees.
If their muscles started to tire, the flames quickly worked on repairing them. So used to this, Arthur had thought the concept to be a joke…
…if only that part of him could see him now, unable to use his flame essence and slowly and inevitably burning out.