Grimm was not a person to be bullied.
The team chose to take him on and tried to pry into his mysterious identity and benefit from taking him down. Thus, there would be no peaceful way to settle this. In other words, the stronger would crush his or her opponent once the hostilities sparked.
The air in the vicinity of Grimm twisted as he thrusted towards the giant who had received a defeat. As the giant was to be hacked, it became a green, thin thread again and cast off over ten meters away.
Grimm seemed to have prepared himself for this. He squinted as he held out his hand. A strong attractive force was generated and pulled the giant back in no time. Afterwards, he threw a forceful punch at the giant in its belly.