Deeply aware of sin, so fearing sin; deeply aware of helplessness, hence understanding despair. This is what Mu Chen felt in front of Qing at this moment. This feeling was unpleasant. He'd prefer Qing to continue her resilience than witness her vulnerability, because this would make him understand sin.
"If you want me to save you, you can, but you must trust me. Can you do that?"
"I want to know, are you going to be more evil?"
"If I were more evil, do you think I would save you? Would I waste time talking so much with you?" Mu Chen retorted.
"Got it. I'm willing to follow and trust you. After all, I have nothing left: family, friends, everything."
"I know."
"Thank you."
"Spare me your pitiful thanks." After Mu Chen spoke, he instantly disappeared without a trace.
