Looks like the Japanese promoter was a sub contracter for the game against Kobe, who should have paid the Korean D-Drive company as the main promoter for Barca's Asia tour. That didn't happen, so Barca cancelled the flight to Japan. Would be interesting to know, if it's really that one sided, as the D-Drive CEO tells us here, or there were some misunderstandings between the Japanese and Korean companies. In any case Rakuten, Japan's Amazon, so far was a trusted partner and paid Barca a good amount of money when they were the main sponsor. They should be involved with the Japanese promoter, as Vissel Kobe is their team.
And as she says here, it's a major public image damage, especially for a Japanese company. Having a good public face is the most important thing in Japan. Let's see what else will come to light.