To save the cost.

Lu Xifu's pupils deepened but he didn't speak much. Kuang Tianshi understood his silence. Chuckling a little under his breath, he shook his head. "Poor them. They really think they can outwit you. They haven't learnt anything even after ages. Do they really think that we couldn't see through their tricks?"

"They love to feel that they are the bigger ones. Forgiving souls in the universe. Let them enjoy their act for as long as they want. We will enjoy ours in the meantime." Lu Xifu said and nodding to him, Tianshi agreed with a hum.