Ok, so I'll just make a few points for people reading this story.
1. I am a amateur in this whole writing a novel thing, however, I'll try to listen to the opinions of my readers and I'll try to make you happy.
2. MC is not gonna be overpowered immediately, he'll have to train and get stronger first.
3. Although MC will have Kazuma's body, he will not be just like him. Although MC and Kazuma will have similarities, they will not have the same personality and MC will act differently.
4. While I have watched and read a lot of DXD, I will not use the exact same plot, as MC's interference will cause a couple of changes.
5. MC isn't a Issei hater, so he's not gonna be an asshole and take everything from him, Issei and MC will be friends in this story, so Issei haters, you don't have to read if you don't want to. This is my novel, and if you don't like it, I will not force you to read it, just please don't spam bad reviews.
6. While I originally was going to have MC be with 3 girls, the vast majority of girls to pick from in DXD changed my mind, and the limit has gone to 3-5.
Thank you for reading, and if you want to ask any questions, you can comment of one of my chapters.