Am I cooked? (10 years experience no degree)

Hello I was hoping someone can help me understand my job opportunities in Japan when I move there.

For context my wife is Japanese and we have said we will move back to Japan in about 5 years (for a few different reasons). I work in marketing and have 6 years experience, so assuming we move in 5 I’ll have over 10 years experience but I never went to university… do you know if this will be a problem in Japan or will my experience alone be enough to land a marketing position (assuming language skills are there)

Thank you!