AN: This story is finished, it's just matter of publishing the thing on Fanfiction. I hope you all like this story, because it's the longest I've ever wrote. I would appreciate no one using the Seven Sins thing that I will have going on in this, as I'm also using the idea in an original story that I hope to release one day. (Seven kids fighting evil with evil, who would have thought?)

DISCLAIMER: I do not own Harry Potter. If I did own Harry Potter, then I would be rich, and I doubt I would need fanfiction to write one of my stories. Harry Potter belongs to JK Rowling. I do not own Katekyo Hitman Reborn, it is the lovely brain child of Akira Amano. The Seven Sins is in no way inspired by another work, people, or places. Any coinciding coincidence is exactly that. Coincidence. Definition of the Flames by Zev Raregroove from BZPB

Please do not post this outside of fanfiction or translate without my expressed permission. My PM is open to those who wish to do so.

Warning: Strange mix of British and American English, I'm an American that watches and reads a lot of British shows and books. Mentions of child soldiers and the idea of them killing people in the sake of war. Mention of torture. The Potters are the Weasley parents' ages.

Everyone will now speak Italian in non-bold writing, ie: "I'm speaking Italian" English will be in bold like this, and Japanese: "I'm speaking Japanese."

Pairings: Harry/Tsuna

CHAPTER FIVE
This is the End

Harry Potter's court date was that morning, and the whole magical world was in an uproar. Other countries, outside of the UK, were pushing to destroy the British wizards, determined to save the boy, no man, who had saved them. Harry could only stare coolly back at the assembled court. Madame Bones looked furious, sending him reassuring looks. Dumbledore was smug as he sat upon his seat. Fudge had been replaced by someone who looked like a lion.

"Order in the Court!" The man roared, Harry rolled his eyes. "I want order!" The room silenced, while Harry mentally counted how long it would take his brother and boyfriend to enter the room. "Harry J. Potter, you are here to face trial for Crimes Against Wizarding Kind. How do you plead?"

"Not guilty." Harry said clearly, making the men smirk.

"We shall see." The man sat forward. "Tell me, did you kill purebloods?"

"I killed Death Eaters." Harry correct, making the man glower. "I did what I was trained to do since I turned eleven. Did what the Prophecy, that your Unspeakables will verify, claimed I needed to do." A commotion could be heard outside before the doors were thrown open by Xanxus. "Hello big brother!"

"Trash, we're leaving." Xanxus snarled, glaring at the aurors who raised their wands at him. Tsuna stepped out from behind Xanxus, and disarmed them within a minute, flames dancing upon his head.

"I suggest that you leave my fiance alone if you know what is good for you." Tsuna melted the cuffs off of Harry's wrists, and started to drag him to the door. "Come after him again, and I'll show you why my ancestors Giotto Vongola and Kiyo Watanabe were feared among the magical enclaves." The young Mafia boss snarled when the assembled wizards stood. Harry decided to say his piece.

"I want nothing to do with magical Britain now that Voldemort is gone." He said, meeting Dumbledore's furious gaze. "I have a family and home now, and you won't take that away from me. I'll destroy the British Wizarding World if that comes to pass, and nothing will stop me. You can't, because I only got caught to give you these warnings. This was all planned." Harry spat.

"Are you saying you planned everything down to my men ambushing you?" The minister sneered back.

"Of course I did. Do you know why? Because British Wizards are sheep. You need only to know what their leader is thinking. It didn't take much to learn their search pattern, and once I had it, I made my move." Harry turned his back, showing his trust in not only his own prowess but trust in his companions. "Good bye, Britain." He scowled, leaving with his family.

He was never returning.

~~~~~~~~~~April Nineteenth, 1998~~~~~~~~~~

Harry laughed as Tsuna pulled him through the park that was perfect for the cherry blossom viewing. They were getting looks, but Harry found them easy to ignore. Who cared if most people disapproved of same sex relationships? He didn't, and neither did anyone that he was close to. They cared only for what made their friends happy.

"Disgusting." Harry heard from a large teen as he sneered towards them. "Bad enough that he ruined my confession to Kyoko-chan, but to fall in love with a guy?"

Kensuke Mochida, Harry realized with a drawing fury building in his stomach as he shot the other boy a glare. He stopped moving, causing Tsuna to give him a confuse look.

"Ha-chan?" Harry blushed at the innocent look about Tsuna, knowing how dominating the boy really was. However, he wasn't going to focus on that right now. He gave Tsuna a smile before turning his coldest glare onto Mochida. The same glare he'd given Voldemort before turning him to stone.

"Mochida Kensuke, correct?" Harry spat, glaring at the slightly larger teen. The dark haired teen scoffed.

"What if I am, Gaijin?" He sneered back.

"Tell me, Mochida, do you know what it means to have killed someone?" Harry asked coldly. Sounds around them stopped. Thankfully, it was only Mochida's group, Harry's Sins, and Tsuna's guardians.

"Pfft, and you do?" The taller sneered, unafraid.

"Yes, I do." Harry pulled his glaive off his back, where he'd taken to carrying it around. "I could kill you, right here, right now, and no one would save you, or avenge you. Want to know why? I'm the leader of the Sins, the most wanted, but also the most feared, group of teen assassins." Mochida was pale now, as were his friends. "I suggest you learn when to hold your tongue. Especially against me and my own."

"Freak!" Mochida squeaked before running off. Harry snorted, turning to face an awed Tsuna.

"You didn't have to do that, Ha-chan."

"Yes, I really did." Harry corrected, locking his fist with Tsuna's. "Shall we enjoy the day now that the unsavory is gone?"

~~~~~~~~~~June Seventh, 1998~~~~~~~~~~

Harry laughed happily as he dodged Tsuna's grabbing hands. The teen had spiked his boyfriend's tea with a gender changing potion that the twins had sent, and it was hilarious! Tsuna made a beautiful woman. Admittedly, not something Harry found attractive, but it was worth it.

"I'll get you back for this, Ha-chan!" Tsuna yelled. Harry caught Reborn holding his hat over his face, and knew the man-in-a-child's body was smiling. He looked like he was seven now, thanks to Hermione and Lisa using aging potions to speed up the process.

"But you're so beautiful, Tsu-chan!" Harry teased, dodging again. A poof of blue smoke covered Tsuna. When it cleared, Tsuna was his correct gender. Harry darted forward to kiss the coughing male's cheek. Tsuna was quick to latch on to him, tickling with one hand. "No!" The older boy laughed.

"Revenge is mine!"

Harry stretched as he made his way to the market. He was making dinner for everyone tonight, and needed to collect enough food to feed an army. Tsuna was chatting his ear off as he lead the way. The wizard had seen the memories of the boy from before he met him from Xanxus. Tsuna was more sure of himself now. Confident. Like he'd needed someone who needed him as much as he did.

It made Harry love Tsuna a tiny bit more.

Oh. Oh, so that was what love felt like.

"And then, Mukuro said-"

"I love you." Harry breathed, awe on his face as the younger boy stumbled as he turned around quickly. A blush covered Tsuna's face as he squeaked. Harry stepped closer until he was face to face with the other.

"I..I love you too, Harry." Tsuna whispered, finally finding his voice as he reached out to gently touch Harry's face. The two smiled at each other as Tsuna pulled Harry into a kiss.

"Well ain't that sweet, boys?" A threatening voice asked, causing the two to part. Surrounding them was a group of mafioso. Harry grabbed his glaive as Tsuna pulled out his gloves. "Ah-ah-ah." he chided, knocking the weapons out of the way before they could be used. "We're sick of the Vongola having a holy-than-thou attitude, so we're going to teach you a lesson. A lesson you won't forget." The man smirked as a Mist grabbed Harry and injected a drug into his blood stream. Within seconds, he was passed out.

"Harry!" Tsuna cried, but was knocked out himself, being left in the middle of the side walk.

Harry kept silent as he became aware a few hours later. He could hear people speaking beyond the room he was in, but couldn't make out what they were saying, or who they were. He was tied up with zip-ties, and a cloth gag was in his mouth. He was debating breaking free and using his wand to get away when the door opened. He kept his breathing even, and didn't flinch when a boot kicked him on the side so he was laying on his back.

"So this is the younger brother of Xanxus Vongola?" The man sneered, Harry could hear it in his tone. "A pretty boy?"

"He's a Sky as well, sir."

"Is that so? Most Skies end up having children who are Skies themselves. Find Aria, she'll do nicely in producing an heir for me that has Sky flames."

Yeah, no way in hell was Harry going to allow himself to be raped.

Harry forced his magic to release his bindings before his Flames roared around him, turning the man into stone. His henchman gave him a terrified look before turning to run. His movement was too slow, and soon, everyone in the hideout was stone. Harry stood, shaking in rage before spinning on the spot and appearing in the middle of what was obviously a meeting about his rescue.

"Ha-chan!" Tsuna glomped his boyfriend, looking him over and scowling when he found the bruise on his side. "Who was it?"

"Doesn't matter, they're dead." Harry assured as Susan moved forward to heal her Sky. "And I will know to be ready next time." His friends and family nodded as Tsuna tilted his boyfriend's head as he kissed him soundly.

~~~~~~~~~~November Tenth, 1999~~~~~~~~~~

Harry laughed as he allowed Tsuna to pull him through the streets of Italy. The two were in the country for business on Tsuna's end, and maintenance on Harry's. After dealing with the British Wizarding world at the beginning of the year, the two had finally relaxed. They were finally happy at where their lives were going.

Tsuna had all but destroyed the old Vongola, remaking it to fit the image that the Primo had wanted. Harry had booted Iemitsu from the CEDEF. He was technically co-head with Kyoya Hibari, but Harry was surprisingly okay with that, seeing as the Skylark tended to stay in Namimori. It meant that Tsuna didn't have to worry about his mother every time they left Japan for business. Harry, of course, could work from anywhere, and tended to be in Namimori as well, but his guardians were almost always away on missions.

"You know, it's funny." Tsuna stated as they walked down the streets.

The younger teen now stood over a foot taller than Harry, finally getting his growth spurt. His soft features had harded from their baby soft look, and now he resembled the portraits of the Primo so well, that it was mesmerizing. Harry was still the same he had been at seventeen, which was no surprise, seeing as he was a wizard, and aged much more slowly. Tsuna did as well, but as a squib, he still aged quicker than a wizard.

"What is?" Harry asked, when Tsuna didn't continue, tilting his head to look the other in the eye.

"That it's been only two years since we met, yet I never want to be parted from you." Harry felt his breath hitch as Tsuna stopped, and took a knee. Others in the park stopped to stare. "Harry James Potter, I love you with my very will, my soul, I can't imagine another day without you." In his hand was a small black velvet box with a simple silver band ring with a emerald and a fire agate. "Will you do the honor of marrying me?" Harry felt his lips tremble as he nodded, falling into Tsuna's arms as soon as the ring was on his finger.

~~~~~~~~~~October Thirtieth, 2000~~~~~~~~~~

Harry laughed wetly as he adjusted the dress's hem that he was wearing. He was currently under the influence of a genderbending potion that wouldn't wear off for a few years, as he and Tsuna wanted a child soon. So the twins invented a potion with the help of Verde and Hermione, that would allow Harry to be a female until he wished to return to his original gender. Currently, he was dancing with Sirius. Remus was waiting impatiently for his own turn. Molly was off sobbing her happiness away to her husband and Nana.

Harry was just happy that his family, his whole family was present at his wedding.

"May I cut in?" Harry blinked as Tsuna was suddenly taking Sirius's place. The animagus grinned before grabbing hold of Remus to dance with. "You're glowing, Ha-chan."

"I'm happy." Harry replied, arms winding up around his husband's neck. He stood on the tips of his toes so he could rub his nose against Tsuna's. "I love you, Tsuna."

"I love you too, Harry." Tsuna murmured, pecking his cheek. "I'm so glad that you kidnapped me that day."

"It was fate, wasn't it? It was about time both of us got something good from her." Harry received a laugh as he was twirled. "Are you mad?" Tsuna frowned in confusion. "Iemitsu didn't come."

"No, he didn't. I don't care that he didn't. Want to know why?" Harry nodded. "Because that man stopped being my chichi the day that he said that you were using me. That you were wrong for me. That I should be with Kyoko or Chrome. He stopped being my chichi, the day he couldn't pick up a phone and let me know in person that he wouldn't be coming to my wedding to the person I love. I have Reborn as a father figure, anata. That's all I need."

"Thank you." Harry breathed, kissing Tsuna deeply, which caused the crowd to whoop and cheer. "You ready to leave?"

"As soon as you are."

Yeah, Harry was happy with how things turned out. He was finally himself. He could finally live life the way he wanted. He was finally loved for being who he was.

He had a good family.

AN: Wow-wee, this has to be my longest story, methinks. I'd have to double check, but I'm pretty sure it is. I hope all of you have enjoyed Sins, and that you all leave polite reviews if you leave any at all. This is my first time writing in this format, and I sort of liked it (I would love a review or PM if you spot any inconsistency, or error in my story line).

AN2: The majority of this was written while I was sick with Viral Gastroenteritis (aka Stomach Flu), so I had a low-key fever for the last three chapters. Any errors were hopefully caught, but I am but one person, and it isn't easy to read 18k+ words and correct every mistake.

AN3: I am taking non-relationship prompts for Fullmetal Alchemist, Harry Potter, Miraculous Ladybug, or Teen Wolf. Prompts I would love to have before the end of September so that I can get the stories out by Christmas or New Years. The first ten that I like, I will choose.