Power Difference Between Ranks
Yale didn't dare to underestimate Selenia, disregarding the swordsmanship their difference in strength alone was enough to decide the battle if Yale was careless.
However, after the first clash although Yale didn't change his face he was cursing internally; he had already thought highly of Selenia's strength, but it surpassed his expectations.
"This strike of her was just a warming up one, and without Auto-regeneration, I fear that I would just endure three or four exchanges before being defeated and that is only if I use that casual sword style from my past life. With my own battle style even with Auto-regeneration I fear that I would be lucky to endure three exchanges, our difference is too much."
That was the usual outcome when someone challenged across ranks. Moreover, those who did it were usually at the peak of the rank, but Yale was just at the 3-star Apprentice, so the difference was even higher.