We can block the ad with firewall, but frame is still loaded, it is inside flash code and don't require internet connection.
The way to remove it is go inside code and delete the part which it loads the frame, and its actually easy.
1. Get
You must be registered to see the links
.
2. Open kisekae.swf with that.
3. Open scripts folder, Remove
Air_HtmlLoader.
4. Save it, boom it's removed
This method take care about frame itself, not ad. the frame is still called in code, but loader is missing, so ad can't load too.