User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170410043119/@comment-31137559-20170411013454

But it's not that Saji doesn't fight but he's not a part of the main cast like Issei is. He lags behind Issei but is that a bad thing considering that Issei is the farthest thing from normal? Well we can say for both of them the opponets are too strong, but the opponents that are too strong for Saji tend to be too strong for Issei too. And this is Issei's series so he's going to be getting all of the focus. And this isn't DBZ where there are only 6 people who are strong enough to take on every opponent that comes their way when DxD is full of supernatural entities.