Harry Potter and the Alternate Universe!
11 parts Ongoing After a year of the Battle of Hogwarts, Harry had no will to live anymore. He had lost Hermione, his lover, his best friend and the one he had planned his future with. She had fallen to the curse of Bellatrix Lestrange and Harry had returned it to the insane woman tenfold in rage. That was also the day when Tom Riddle AKA Voldemort fell to the wand of the 'chosen one'. He had spent more than half of a year after the battle in Godric's Hollow, where he had buried Hermione, near his parents and the rest of the time, he spent taking care of his Godson.
Being Intoxicated with Firewishky didn't help either. Finally, he figured out he wouldn't be able to live on happily anyway. So he wrote a will giving out a good amount of money to Weasleys and the Rest of Black and Potter's fortune to Teddy, his Godson. He had even made sure that his will wouldn't be 'sealed' like Dumbledore had done and the Ministry of Magic, wouldn't be able to scam Teddy off his inheritance for being the son of a werewolf. Of course, he had to make the big Guns of the ministry, including Kingsley- the minister of magic, sign the contract at his wand point and later obliviate them. After Hermione's death, he wasn't afraid to get his hands dirty.
He then attacked a gathering of vampires, werewolves and dark wizards who were planning to take advantage of Magical Britain's current situation as they were severely weakened after the short but cruel reign of Dark Lord Voldemort, and single-handedly killed most of them, but not before he got hit with a killing curse. With a grin, he awaited his next great adventure to meet Hermione.