The leader had actually been injured quite a bit from the fight with Dennis. He was putting on a brave face to make it seem like the fight was more one-sided than they thought to his students and the others. He had also used up nearly all of his MC points, so he was in no condition to fight further.
After defeating the leader of the faction, he believed no one else would volunteer to come forward. He was also sure they had used their best men earlier, maybe there was one or two out on a hunt, but he still had eight other students that were strong and ready to fight.
When he saw Quinn walk out to the front, he felt strange seeing how confident he was. But that all went away as soon as he saw the C rank tag.
"You're just a young fool, aren't you? After your leader beat one of our students, you think you can defeat another. Lemon, go ahead and teach this fool." The leader said, taking a step back, and one of the students rushed to the centre of the ring.