The fight did not take long at all and with Vihaan mostly being the one that got hit by the Antonov brothers while Hal remained unscathed, Boryan and Cheslav's defeat was relatively easy.
The fight gave Vihaan a hard dose of reality on what being branded by Hal really meant in the sense that even in attacks Hal could avoid, Hal would remain in place and leave the responsibility of remaining safe in the hands of Vihaan who would usually put himself in-between Hal and his attacker.
Such that at the end of it all, he was just as injured as the Antonov brothers but this time he took a mending pill he had inside his spatial ring so he would be strong to return to his residence right as Hal left the scene without another look back.
There was no point in staying.
Of course, he made sure to take advantage of having the Antonov brothers beaten down to unconsciousness by branding them with the Devil mark.