In this fanfiction, Harry having custody of Pepper Potts could lead to a really interesting story. Maybe Pepper has lost her memory due to some sort of trauma. Harry, being the kind - hearted person he is, takes her in. He tries to help her regain her memories while also dealing with the people who might be after Pepper for her knowledge of Stark Industries' secrets. Along the way, they could face challenges like adjusting to each other's lifestyles. Harry is used to a more magical and somewhat simpler life in some ways, while Pepper is used to a high - tech, fast - paced corporate world. Their interactions as they try to co - exist and deal with the outside threats would be full of drama and character development.
One possible plot could be that in an alternate universe, Harry somehow becomes responsible for Pepper Potts' well - being. Maybe there was a magical or scientific accident that linked their fates. Harry, with his own set of skills and values, would have to navigate the world of Stark Industries while also protecting Pepper from various threats, both corporate and otherwise.
Well, it could start with Harry being in the wrong place at the wrong time. He stumbles upon Pepper in a vulnerable situation, perhaps after a major attack on Stark Industries. Since he has a strong sense of justice, he decides to take her under his wing and into his custody. As time goes on, they form an unlikely bond. Harry might introduce Pepper to his own world of magic (if we're mixing universes here), and she in turn helps him understand the complex world of high - tech business.