Your killer
Even mercenaries like Ultima and Vortex have done nothing but give up their System Deity who has been their partner from the beginning. So are the Instructors.
Their situation could be said to be really hopeless because they also cannot leave ordinary people alone.
Kiko's friends also tried to fight back, but after the guns were pointed at them, they cowered. Their System Deities were also took from them.
After collecting the System Deities, a member of the criminals again whispered to their leader. "Boss, you see, most of the people here seem to have wearing expensive jewelries," after saying this the leader immediately ordered the jewelries to be taken.
Yana and Rea noticed that the criminals were staring at their jewelries. So when the leader of the criminals called them to approach, the two were hesitant to follow his wishes, not because of their selfishness, but because the jewelries they were wearing had great sentimental value for them.