No one should feel obligated to be good to anyone, nor does anyone owe anyone else.
Zhang Yichen didn't want to say much to his father, so he left and went back home. He felt his father had changed, no longer the person he used to be, now numb and ruthless, doing things without regard for consequences. He couldn't let such a father stay by his grandfather's side forever, as it would only hurt his grandfather more and more.
Zhang Zhentian watched his son refuse to acknowledge him and knew he had gone too far this time. He realized he often acted without thinking, wondering if things wouldn't be so terrible if he contemplated more. Why was he always hurting others, seeing them in such pain as if it brought him joy and happiness? He didn't want much, but ultimately hurt those who loved him the most.
