According to the abs-cbn news about cryptocurrency.
The remittances from Japan maybe cheaper using digital coins:
Tokyo - A Filipino - Japanese  partnership promises to cut remittance cost for Filipinos in Japan, as part of an ambitious project based on a cryptocurrency called Noah Coin, one of it's advocates said.
Filipino's in Japan will soon be able to remit through Nippon pay in Japan to an electronic wallet in the Philippines provided by Filipino firm Satoshi Citadel Industries, according to the Noah Coin website.
This will cut remittance costs for a P10,000 money transfer to 2 to 3 percent, from 10 percent.