Ad network for the Japan traffic

Monetizing, Advertising & Marketing Advertising Networks
1

Hi.
I’m looking for ad network or direct advertiser for the Japan traffic.
My traffic is Worldwide but mostly from Japan.
I have 7000000 pageviews from Japan per month (15% new visitors and 85% returning visitors).
Any suggestions?

2

StartApp is best for all regions.

3

I have a website, not app.

4

Adsense…