Kurumi Nara claimed local bragging rights with a stunning 6-3, 6-0 win over rising star Naomi Osaka on Wednesday to reach the second round of the Japan Women's Open.

Nara, ranked 108th in the world, romped past the 46th-ranked Osaka in 70 minutes to book a meeting with China's Wang Qiang, who won her opener 7-5, 6-2 against Taiwan's Hsieh Su-wei on Monday.

"It was an all-Japan battle and I know what a tough opponent Naomi is, but I think I did what I had to do in today's match," said Nara, who lost her only previous meeting with Osaka on the tour in Birmingham last year.