Levi barged into Hayato's business and insulted it. He's not going to take rude remarks against his work well. When the other stomps up to him, the mafioso glares down at him and dodges that little move by simply turning so the other's hand will clip his thigh.

Levi getting onto his toes is met by Hayato grabbing the collar of his shirt and tugging him up closer. "Just what the hell do you want?"