More than 8 million homes lie abandoned across Japan, a symptom of the declining population and people's migration to major cities.
For one company, this isn't just an ominous demographic signal, it is also a business opportunity.
Katitas Co. is a house-flipper, deploying a business model that would be humdrum in other countries but in Japan is considered innovative. That is because people in the country have a deep-seated aversion to second-hand homes.