Nigerian coach Peter Dedevbo, in the post match conference, said despite his team going down by a huge margin this evening, they will come back stronger in their next match.
He said he did anticipate such a goal margin from a side that has been together for a long time.
This evening's match saw Japan power house duo Yuka Momiki and Mami Ueno score three goals each while an embarrassing home goal by Nigeria's Mary Ologbosere gave her opponents that 7-0 win.
Japan had 68 percent ball possession against Nigeria's 32 percent.
They also had 22 total shots at goal.
Japan coach Asako Takakura, through an interpreter, said the Nigerians played more fiercely, which they respect.
She said her team relied more on their passing game.
"Today's game was based on strength and counter attacking what Nigeria was putting forward. We attacked Nigeria's weakness," she said through her interpreter.
Japan's next match will be against Spain and Takakura said Spain had a good game today and knows Spain is a strong contender. They will play their own unique Japanese game to best Spain.