Ring Lord Vanisher

He said exposure to the killings will tamper my thoughts and prepare me for what is to come, making my mental state stronger and all that.

Also, he's pushing me to understand that the world beyond this isn't all rainbows and sunshine," 

Gustav understood this method of thinking, but he still felt it was a bit rash for Sir ZiL to make such a decision for his fifteen-year-old grandchild.

Damien wanted to join the MBO and had even asked Gustav for some battle tips, but Gustav told him he would only offer some battle tips after he had found Boss Danzo and saved him from whatever ordeal was making him do this.

All his mind during the last three days was focused on research and making plans.