Lu Boyan sighed in a quiet voice.

Su Jian'an still felt puzzled. "Why did you sigh?"

She had resigned for a long time, but the knowledge that she had worked hard for long to grasp was still kept in her mind. As Lu Boyan had said, her plan might not be efficient enough, but there was nothing wrong about it in principle.

Currently, there was no better plan.

In this case, why did Lu Boyan still sigh?

Lu Boyan touched Su ...