The beast taming aurax and the feral aurax were his first index-3 aurax opponents ever. Both were unique in their own ways, several times more powerful than the index-2 he had fought so far, and so were the true cores he had obtained from them.
These true cores were much bigger and had a soft golden glow shimmering from them. They were of different colours and sizes compared to the index-1 and index-2 true cores he had obtained thus far, radiating a denser and more refined aura.
He picked up the first one belonging to the beast taming aurax and at that instant, a strange energy coursed through his body. It was not hurtful, but the sensation could not be described with simple words. It felt ancient, heavy, and alive.
