Cost of living in Sendai (Japan) is 64% 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 106 prices entered by 6 different people.
For example, you would need at least 454,961 ﷼ (¥206,185) in Sendai to maintain the same standard of living that you can have with 277,000 ﷼ in Aden.