All Within

This is my first time writing a story, I'm doing this for fun and I hope that I can get some feedback to improve! PS: I only own my OCs. Disclaimer: The cover is not mine, I'll take it down on the owner's request. Disclaimer: There will be a DxD, Naruto and Jujutsu Kaisen crossover at some point in this fanfiction, I do not own any rights to these.