Cost of living in Naha (Japan) is 36% more expensive than in Aden (Yemen)
WARNING! This comparison is based on only a few data points. At this point it is only a guess. It is based on 61 prices entered by less than 5 different people.
For example, you would need at least 397,918 ﷼ (¥175,167) in Naha to maintain the same standard of living that you can have with 292,000 ﷼ in Aden.