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My first playthrough took 101 days.
I planned to improve the second one by 10%, down to 90 days.
After considering that I could take Navigation instead of Fire or Air magic,
I predicted an improvement to 85 days.
In the end, I achieved 68 days, and I'm happy with the result.
Regarding the 36 days, my opinion is:
it's probably possible, but only if you involve
one or two more main heroes to complete the quests.
In my case (and, as I assume, for most players), there was only one main hero.
