I'm located in the U.S. but I know traders that are scattered all over Canada and they had no problem setting up an account thru...
Can you use TT or Rithmic on the back-end ?
Try Googling "Japanese Futures Brokerage"
Why can't they accept you ?
Brokerages or Clearing Firms are required to keep client funds in a separate customer segregated bank account for your safety.
Separate names with a comma.