ISO of pickup soccer or futsal

Hello all,

I am in search of a pickup soccer game or a futsal game sometime this week.

I am currently traveling in mainland Japan and will be coming to Okinawa this week for the week. I played in Tokyo last week and would like to find a game in Okinawa. I'm from the United States and play regularly back home. Any information is helpful. The websites for the futsal fields aren't too easy to navigate. Thanks in advance!