Hajime's outward reaction pissed the other guy off, causing him to grab Hajime's hand and attempt to punch him. Without thinking twice, he strained his shoulders and threw his whole body for the punch aimed at Hajime's cheeks. 'This kid, who does he think he is? Acting so smug and all?' He said in his mind.
"Oi, what are you do—" the third guy called out, wondering why one of his partners lost his cool over Hajime's reaction. Right now, they didn't want to cause a scene since they were almost done with Keiichi.
But as soon as he turned around, Hajime was already flinging the back of his hand at his jaw. There was only a split second for him to react but he wasn't able to do so since he saw his companion on the ground, knocked out cold.
The attack connected and he staggered, but Hajime made sure that he slipped into unconsciousness before he dealt with the third guy— the most muscular out of the three and the one who held Keiichi captive.
And a friendship was born... hopefully ( -_-)