https://hawaiianair.custhelp.com/app...ta-—-nrt

Counter opens 3 hrs before the flight departure.

In March I had a long layover on 2 separate tickets and arrived at NRT around noon too.
I would recommend checking out the Sora no Yu Narita Airport Onsen. You can take a taxi from the taxi stand and store your luggage there, eat at the restaurant, and relax in the onsen.

https://www.jal.co.jp/ar/en/guide-to...a-Airport.html