Even though Rean cursed Roan, he knew he was right. He was moving tens of times faster than he usually did. Not that he didn't want to move faster, but because it had a great risk of engaging against a normal Flash Beast if he moved too fast. Yet, this small Flash Beast was even faster the the normal Big Flash Beasts themselves.
However, Rean didn't really believe they had all that power stored inside themselves. Sure, it might be something similar to a Dantian, but if that was the case, then these small things were also supposed to be extremely strong. It was then that he perceived something. 'The fragments of Convergency Crystal...'