Boars are bento brawlers that insist on cheating for their bento. Described as "having no shame, but they have the fangs to fend off Wolves," they do not follow the rules of wolves, and instead take more food than they need before the discounts are on them, then demand the discount seals be placed nonetheless.
The first boar was encountered during episode 2. Brunette attempted to stop her, but was thrown out of the way, followed by Goatee and Bozu. The boar then took each of the remaining bento and rudely demanded the Old Master finish putting the discount seals on them.
The same boar appeared later that episode. Sato's attempts to stop her failed, but she was directed into a crash by The Wizard.