Under Mu Sheng Xi, the interrogation didn't actually last that long.
The youth was able to speak properly and managed to tell the truth about what actually happened. Even though he was also threatened to tell about why he joined, which was actually a crime.
They learned how these people were tasked to kill those closest to them if they wanted to get away safely without anyone knowing the truth.
And it did happen.
They were brought away and no one could find them anymore because they were staying within a secluded valley.
There were a lot of things they were ordered to do afterwards.
"Kill the one closest to you." Mu Sheng Xi's heart turned cold when he looked at the report he had written. Even though he was the one who write it, he still felt that it was really inhuman to make them do something like that.