I underestimated his terribleness

There was a commotion in the square, but other than Ren Xiaosu, no one could hear it.

After a long time, the deep voice suddenly said, "Although that kid is a little mean, I find him quite interesting. After all, there's no use being humble in this chaotic world. Instead, it's only by being meaner that he can lead the survival of Fortress 178."

As the martyred spirits slowly calmed down, one of them suddenly said, "Fortress Commander Li, do you think that kid is qualified to be the commander?"

The deep-voiced Commander Li replied, "I think he's not too bad. Back when my old commander reprimanded me, he always said I was too honest. If I had used clemency and morality when dealing with the enemy, I would have led all of our Fortress 178's soldiers to their deaths. At first, I didn't understand why he said that. But later, I realized that he was right. Because our enemies won't talk about such morals with you."