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According to traveldoc.aero, you will require a visa to visit Japan.
Per the same source, a visa is not required if your travel in Korea is to Jeju, will last no more than 30 days, and will include departure to a 3rd country (i.e. Japan -> Jeju -> Germany, but not Japan -> Jeju -> Japan or Japan -> Jeju -> Seoul -> Germany).
Upvote:1
For Japan:
Visa Requirements. UK, AUS, NZ, USA and CAN passport holders do not require a visa at present to enter Japan for touristic purposes for a stay of up to 90 days. ... Please double-check all visa requirements with the Japan embassy at least one month before travel as the above is intended as a guide.
You should check with the Japan embassy but as you do not hold any compatible passport you most likely need a visa.
South Korea:
Visa Requirements for Philippine Passport Holders β South Korea (Republic of Korea) ... Citizens of many countries are allowed to stay for 3 months with proper visa documents