is ¥200k enough for 20 days in japan as a worldpackers traveler?

(still planing - mid 2027/early 2028) i’ll be staying about 1–2 hours away from tokyo/mt. fuji through worldpackers, so accommodation is already covered. i’m planning to stay for a maximum of 20 days and was wondering if ¥200k would be a reasonable budget.

my main expenses would be food, museums/exhibitions, transportation and some shopping. i’m not looking for anything fancy or luxurious, but i’d really like to make the most of the trip, experience the culture, explore interesting places and check out some cool stores.

for anyone who’s traveled japan on a similar budget, does ¥200k sound comfortable enough? anything i should budget more for? my currency is brl, im in brazil.