User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-77.136.87.178-20180506124540/@comment-28884330-20180506164847

Rias is not underestimating Issei in any way or thinking she's "above" him. If she did, why would she be trying to catch up in a variety of ways so she doesn't become dead weight to him? You're seriously missing a lot of points if you think she's "getting full of herself".

If you refer to the Strada thing, then what? Is she supposed to tell Strada that he has to go easy on Issei on the tournament? That she doesn't have faith Issei can deal with Strada? Your thinking is so incorrect.