Sharwin's family members didn't live very well. His family didn't share any warmth with him. Given this, people could judge it from those broken armor and sword how his family members had prepared for him to attend the survival training.
Sharwin was also very frugal at school. Zhang Tie had also heard that Sharwin was doing part-time jobs outside to subsidy his family members. However, he had never heard that Sharwin's parents had given him a copper coin for pocket money.
In the survival training, when the members of Hit-Plane Brotherhood discussed beating Sharwin's father up for his mistreatment, they were stopped by Sharwin himself.