Harry Potter: Transmigrating to the Marauders' Era

[The first chapter has content warnings, or you can find them at the bottom of the blurb. I recommend reading the author’s note about the warnings before starting.] When he opened his eyes, his memories were like ashes left after a fire, reduced to a few scattered fragments. Luckily, it wasn’t long before an old man named Nicolas Flamel appeared. After learning that he had lost his memory, Flamel told him everything about himself. Ian Tempus, an alchemist obsessed with the Time-Turner. He had disappeared 270 years ago, after sending Nicolas Flamel his last letter. Who would have thought that when they met again, Ian would really have traveled to the future, and even become a child? Ian was only half convinced. He would find the truth for himself and recover his lost memories. But first, the wizarding world had to be at peace. The presence of a certain dark wizard and his followers was wasting far too much of his precious time. Here are the content warnings. ① Updates are irregular. ② Extreme Snape fans, please stay away! Slytherin pure-blood aristocracy fans, please stay away! ③ The blurb has been revised. It used to be about someone transmigrating from the modern world, but that’s no longer the case. The protagonist is a native of this world. ④ I’ve considered ending the war during the Marauders’ era, so the protagonist is exceptionally talented and powerful. In short, he has a huge golden finger. I’ll try to make it plausible, but some readers may still dislike it. If it’s not for you, just leave. Please don’t message me about it! ⑤ Although this is tagged as pure romance, that’s only because I’m worried I might get carried away. There won’t be much romance, but if there is a pairing, it’ll be Sirius. ⑥ In light of my good-faith warning in the very first chapter, if you can’t accept any of the points above, please leave instead of making things unpleasant for both of us. There are countless great stories out there, and you’re sure to find one that suits your taste. I hope everyone finds a story they enjoy. If you’re fine with all of the above, you can move on to the next chapter. Thank you! Theme: Friendship