User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-77.136.87.178-20180506124540/@comment-34061653-20180506154305

Exactly, Issei is a powerful fighter but now he has to train his mind. Rias has gone through the same since the beginning and now she has become a good leader and king do to experience she gained over the course of the story so now it's time to learn how to be a king and leader because he's still new to this.