Humanities Wizard

It’s mostly going to be about a SI reincarnated into the world of Highschool DXD with a little bit crossover from Harry Potter. The SI will be from a family of wizards nothing special, who get killed by devils later onwards. This is going to be more pro humanity then anything else, it’s not going to be a straight bashing of devils, the Mc knows that there are some good some bad but still he hates how humans are kept as pets by all the supernatural. This is set at least 100 years before canon.