I was really happy to see the development between Issei and Rias. At least by the final episode, we finally got to see their relationship move forward. The finale was fantastic and the battle was intense and I really enjoyed watching it. I also didn’t expect Rias’s brother to play such an important role in everything that happened. If this series has another season, I’d definitely watch it. This is one of the anime I watched years ago before I got too busy to keep up with anime, so rewatching it has been a really fun and nostalgic.