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The Fūinjutsu Mishap

Summary:

Tobirama was the best Fūinjutsu master of his time, but even he couldn't spot the little mistake in his new seal that, instead of bringing his beloved back to life, sent him into a new life. In a universe that isn't quite his own and still looks and feels like a spitting image of it, he finds himself stuck as the bijū of a newborn Uzumaki girl. A nervous breakdown would probably be expected in such a situation, but Tobirama has never been one to follow expectations. He decides to help and protect the child, since her death would mean his and, through her eyes, discover the world he now lives in. No way back, only forwards.

Chapter 1: Prologue

Summary:

Where Tobirama messes up. Badly.

Notes:

Before you start reading, we should really take a little time to talk about what this is, and what this is not. I’d rather set clear expectations, so you know what you’re in for if you decide to start investing time and feelings into reading this fanfic.
First of all, this work is loosely tied to Something End, Something Begin (SESB). However, you do not need to have read SESB in part or in its entirety to read and appreciate The Fūinjutsu Mishap (which we’ll start calling TFM for convenience). You could read one and not the other and understand everything. Also, TFM is spoiler-free for SESB readers: the event that ties both stories together hasn’t been translated in SESB yet, so I’m keeping it a mystery in TFM. That way, you can read both stories and appreciate them fully, without fear of spoilers.
My second point is probably the most contentious, so bear with me here. TFM is not canon-compliant. The reason why is that I don’t find the canon to make sense a lot of times and decided to do my own thing with it, just like I did in SESB. Because of that, and because the stories are loosely tied together, things established in SESB will make their comeback in TFM, like the Fūinjutsu rules, for example. I will not follow the canon ages for certain characters, will show no respect to the Elders, will toy with canon like a three years old with construction blocks. With any luck, this story will end up being another beloved piece of art. I certainly see it as such already.
Now to my third point. SESB readers will be reminded of some things while reading this. Mizumi and Hitomi are similar in more than one way. This, however, is not a self-insert, nor is it a reincarnation fanfic in the classical sense of the word. It is still very much a fix-it, and will explore a lot of areas that the canon kept in the dark or forgot about. All in all, I hope you like it and enjoy it.
Also, and as an endnote, this story will be updated once a week-ish. I have a wonderful editor working on it with me. We established a backlog of chapters before publication started so we’d both be more comfortable with keeping that pace of one chapter per week. We hope you like it and, if you do, please drop a little comment in the comment section, or a review, depending on which website you read this on. Enjoy!

Chapter Text

Despair could kill a man. Tobirama had learned this lesson many, many times over. It had broken him so many times he had lost count – and Tobirama Senju never lost count. As his life crumbled under his very eyes once more, as the girl he had dared to love faded away and the spark of life in her crimson eyes dulled, he cursed his existence and the gods who had plagued him one time too many.

She had asked for something he couldn’t give with her last breath. And yet here he was, keeping his word because he had given it to her and never went back on it. What kind of man would he be if people couldn’t trust him? What kind of leader? He had to do it. She had asked him to be happy, and he saw no happiness in his future without her.

Coaxing the dead to come back was no easy feat, but Tobirama had a plan. He had been the one to invent a seal for it, after all. That one wouldn’t do, because it would deprive the woman he had lost of her willpower. It wasn’t what Tobirama wanted. She had been too glorious, too utterly perfect, for him to alter her in any way. But the Impure World Reincarnation Seal would be an appropriate point from which to start over.

The candle was running low, its flame dancing in all directions. Tobirama breathed in and out, in and out, and forced his chakra to go quiet once more. He couldn’t lose control of himself, not now, not so close to his goal. He would be happy. Yes, he would be happy. His beloved would be proud, she who was so good at playing with words and promises. She loved it when men joined in her games, when they bantered and sparred with her ‘til morning came and went. He’d do that and more when he got her back.

He straightened up, his back cracking in protest. His whole body was aching from the battle, only two days prior. He hadn’t slept it off yet. Without her in his bed, he wasn’t sure he could ever sleep again. It wasn’t her perfume on the pillow or her warmth trapped between the sheets that had lulled him into rest all those nights but something more, something he knew no other woman could provide. He read his work over one more time, just to be sure.

He was right. By the gods above and below, by the Hermit and all that was holy and good in this world, he had done it. In only two days’ time, he had found a way to bring back the dead, and he didn’t even feel proud about it, just tired. He rubbed his face with weary hands and closed his eyes to rest. Not to sleep, of course.

When he felt the fog lift from his brain, he cut his left palm open on the edge of a kunai and looked at the blood pooling in the creases of his hand for a moment before he put it cut down against the stone floor. A spark of chakra was all it took for the seal to activate.

And go terribly, terribly wrong.