What do you think about my time traveller Tom x Harry x last Voldemort soul fragment fic idea?

Some time ago, I started thinking about an AU where Harry has a Muggle job. Then I came across fanfics where Tom is the one who travels through time. I put the two ideas together, and here’s what I came up with:

After Tom creates his first Horcrux, he notices some unwelcome changes in his well-being and personality. For example, he loses motivation and interest—even in immortality and the Chamber of Secrets. While he may not have been particularly enthusiastic before, he was at least able to obsess over things. After breaking his soul, though, even obsessing becomes difficult. He feels empty and apathetic.

He turns to the diary, and the soul fragment inside writes back to him. It tells him it feels afraid, lonely, and powerless—something Tom regrets encouraging it to confide in him about. Desperate for answers, he starts looking for a ritual to reintegrate his soul, though he suspects it’s impossible. It takes him years because it’s a struggle for him to do research (and his studies) in this numb state. Over time, he gets a little better though, partly because he keeps talking to the diary. Eventually, he stumbles upon a ritual that he hopes will work.

And it sort of does—but instead of reintegrating the diary horcrux with him, it sends him forward in time to Harry’s present, a few years post battle of Hogwarts.

Now, about Harry: I imagine he’s always been sympathetic toward Tom, and his meeting with the soul fragment at imaginary King’s Cross only strengthens his pity and really pushes his saving-people-thing button. So, during the final duel, Harry subconsciously manages to capture the last fragment of Voldemort’s soul and incorporate it into himself. He doesn't intend it to happen, but first, he's master of death without knowing anything about how it works, second, Voldemort's survival instinct really kicks in, and his soul, like before latches onto Harry. When Harry realises what happened heels both relieved and guilty about it, as well as terrified. He decides to distance himself from the wizarding world at once to make sure Voldemort can’t return.

I imagine Harry has been already alienated and in a bad place mentally, even before the Battle of Hogwarts. So it makes sense to him to retreat to the Muggle world. He needs time to figure out his own shit, and most of all, what to do with the soul fragment. I think he's kind of happy, too ti be able to finally make a decision about his relationship with Voldemort on his own.

Not surprisingly, he decides not to keep him. Instead, he starts searching for ways to heal or “tame” the soul fragment inside him. But it's not an easy job because this last soul fragment has endured far more suffering and committed more evil than the piece Harry carried before. At first, it’s a constant challenge just to keep it at bay—holding back the hatred, anger, and rage that threaten to overwhelm him. Over time (months or maybe years), Harry learns to manage it. He becomes more familiar with the fragment, making it more predictable and less dangerous. In the meantime, Harry also does his research, looking for magical ways to enhance the healing process.

Harry's in this work-in-progress state with Voldemort, when the ritual lands Tom in his time. I'm not sure if Tom can actually be "put back together" but any healing requires an empathetic and understanding other. Who better than Harry who literally knows the worst of him and is still willing to help him?

I didn't use prompt flair because I would actually love to write this myself 😅 problem is, these idiots deserve a nice long multichapter fic and the longest thing I've ever written was a 19k oneshot. 😭 I would like to get back into writing fanfic tho, and I also have more free time than I had in years. Would you be interested if this turned into a story?