Had it been most other Martial Sages, they would have died on the spot. To have a piece of one's sternum turn into pure light was an incredibly lethal attack even for Martial Sages, for it bypassed defenses and inflicted great damage from within the body of the target. If Ria didn't know better, she would have assumed that he genuinely wanted her dead.
Alas, the attack failed to kill her.
This was a Martial Artist who had tamed a spark of materia prima as a Martial Master; once she became a Martial Sage, her mastery of materia prima had reached a whole other level. An attack that would have killed almost every other regular Martial Sage merely caused internal hemorrhaging, causing her to cough blood. The explosion that was caused by his Unilumina was muted compared to what one would have expected for the amount of matter being converted into materia prima.
