Silver Hayato
"But you, you are something else entirely. There's no way you could have become this strong in such amount of time unless, you somehow managed to fake your rank. Are you a false ranker?"
In this world of supernatural phenomenons, a false ranker simply referred to those who hide their true ranks. It could be they hid their true power while pretending to be weak or vice versa.
"A false what?" Rentaro asked, his question alone was more than enough for Silver to realize that he had no idea what a false ranker was.
"I see, you really are something else." He replied, a soft smile stretching across his face as he glanced at the commoner.
"These questions are nothing but a waste of my time and yours, I have nothing to explain to you or anyone else. I simply got stronger." With a sigh, Rentaro spoke aloud to clear the air.