"Around" master level? Souichiro would kick Kenichi's and all of his masters asses. Souichiro has over a hundred different abilities. One of which can make them all stand there like statues as he rips their hearts out. Honestly, they can't even hurt him after he achieved Susanoo status of power.
This is just what happens when he puts his foot down, opening the Earth Dragon Gate.
Really, what can they even do? Even before all that, Kenichi had no chance whatsoever.