It's probably a series of "interesting things" that happened after the heroine of this work was suddenly brought to the UK.
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The initial timeline is one year before Harry Potter enrolls in Hogwarts, and there will be descriptions before enrollment.
Enrolled in the same year as Harry.
I haven't thought about whether any original characters will die (maybe even more). But! Believe me! He!
There may be very few emotional lines. Because the author only likes ambiguity, and a completely ambiguous relationship is unattractive (violent statement)
It should start to drift away from the main line, but it will definitely return to the main line after the fourth grade, because the general trend is.
Purpose: Live with a sunny and positive attitude