Self-Locking!

Vaguely guessed what the "reason" that Long Yangjun mentioned was, Li Yao was breathing heavily.

Long Yangjun smiled and said, "Think about it. Under what extreme circumstances do you think people will abandon their feelings willingly?

"Oh, there is no need to think about it at all. You'll know it if you look at the incident of Nepenthe in the Great Iron Plants below the capital that we just went through. Extreme shortage of resources, extreme pain and exploitation, and extreme desperation. With those mutually-affective conditions, people will abandon everything including feelings voluntarily without any deception or coercion!

"Then, is it possible that extreme dread was the reason?"

Li Yao was silent for a moment. He asked when he knew the answer, "The 'extreme dread' for what?"

"You have guessed it."