In defense of Leon. Like his sister he consider the game as true and should be the way it be. The problem is it isn't and there bound discrepancy of what really would and has happened with their in game knowledge. According to leon and by his sister statement the war arc is especially difficult and the event after that probably even worse. For Leon he see the in game event to be the sole guidance for better future. For his sister she think that they can be used to built herself her own future. His problem probably because he cant take the whole responsibility to guide and to save the whole future of the kingdom and olivia's own future. He is a coward yes.