PNG replaced South Africa as World Cup hosts in March, gifting them automatic qualification and a second berth for Oceania.
Hosts Tonga face a tough test in today's opening match against defending Oceania champions New Zealand, who have been on an unbeaten run since 2002.
Coach Penateti Feke was a part of the Tongan team at July's Pacific Games.
She's selected four of her teammates from that event, while nine have experience from last year's Under 20 tournament.
