User blog comment:B214/Question and Answers 6/@comment-3965848-20161128172019/@comment-86.145.208.181-20161129033621

The problems is that is also a prejudice view expecting someone like Issei to understand those concepts. He had a happy and safe life until he met Raynare so of course his view of the world is black and white compared to Diehauser who has lost someone he cares about due to the curruption of the Rating game.