the fastest way to go to narita from haneda?

I have a flight by Japan Airlines will be arriving at haneda 5am & the next flight from narita 10:55am.
I bought those promo tickets at the travel fair so i didn't know about this situation.
Will that be a transfer flight? Our luggages will be transfered directly from haneda to narita or do we neef to get our luggages then get out from haneda & bring it to narita? I checked if i go by bus the earliest is 7:55am where according to the information, it will take ard 90mins to get to narita from haneda.
Please help for advices.

Thanks & regards,
Andre

When there are no traffic delays, taking a taxi is fastest. Next fastest is taking a direct bus. If there are traffic delays, taking trains can be faster. The options are summarized here:
http://www.japan-guide.com/e/e2027.html?aFROM=2027_2430

If you are arriving from outside Japan you must claim your luggage at Haneda and pass customs there . You then will have to carry your luggage to Narita.

The first bus from Haneda to Narita departs Haneda international terminal at 6:25 which will take 70-75 min to Narita airport.

http://www.limousinebus.co.jp/en/platform_searches/index/4/2

There are many routes to get to Narita airport, but bus requires no transfer so I recommend you to take bus.

https://world.jorudan.co.jp/mln/?p=0&date=11%2F21%2F2016&time=10%3A44&...