Western Crossover: Every Time I Roast a Villain, I Switch Worlds

There is no Dark Lord a single Chosen One can't take on. If there is, then bring in two.

So here's the question: how many times will the Chosen One have to take on the Dark Lord's Horcruxes?

Harry has known herself since childhood: another version of herself.

She's a girl with the same bright green eyes and messy hair as him, and even the same scar.

Reader's Guide:

1. Pairing: Harry x Harriet

2. The main world is Harry Potter; other worlds are side quests.

3. The characters belong to the original work. Any OOC is my fault.

4. Cover image from Yiren's Art Shop