Sounds like the dude is studying for his economics 101 test. Yes, paying for goods coming from overseas with a weaker currency will impact the local price higher (other things being equal). This has always been a key principle to bear in mind when energy prices are rising and the yen is falling.

Also says:

  • prices of food, excluding volatile fresh food, rose in May at fastest y/y rate since March of 2015


Japan data from earlier is here: