Harry Potter, a normal boy in the eyes of Muggles, The-Boy-Who-Lived in the eyes of wizarding world. But what if he is more than just that? What if the boy has a history and lineage that can shake the very foundations of both wizarding and muggle world? Changed rating to M for safety.
After Harry Defeated Voldemort, He Got Betrayed by Everyone Around Him, He Was Declared a Dark Lord and Was Imprisoned in Azkaban, and When He Gets a Visit From Someone Very Special, He Gets a Chance to Do It All Again, Correctly This Time, He Doesn't Hesitate, and Goes Back to His 4-year-old Body, Ready to Live His Life Correctly This Time. Grey!Harry and Eventual Harem.
Harry has just lost his godfather and he is ready for a break from everything before he loses his mind. Unfortunately for him, now he has to deal with being the lord of two houses and learning what that means while also coming to terms with a family secret that's been hidden for years. A surprise marriage contract makes things even more interesting.
During the battle in the COS the basilisk fang destroys the horcrux in Harry's Scar. The Chamber holds more than a giant snake. What happens when Harry finds the secrets? Will it aid him achieve the greatness he was always destined for? Powerful! Harry. Good! Dumbledore. HPXDGXFD
Harry is a single father trying to raise his godson, Teddy. Unable to ensure his son's safety in the wizarding world he goes into hiding in the muggle one. But one trip to London will undo all of his precautions. Thrown back to the past, Harry will take up the DADA position and fall into the arms of a woman who once spared his life. Mauraders, no time paradox, Light/Badass Harry.