Jeon Mi Jeong claimed her fourth title of the season on Sunday after a final-round 68 gave her a wire-to-wire victory at the Hisako Higuchi Ladies.
Starting the day two shots clear, the 29-year-old South Korean made five birdies against a lone bogey at the ninth hole at Morinaga Takataki Country Club, closing at 12-under 204 for a three-stroke win over compatriot Young Kim.
Veteran Junko Omote, Sakura Yokomine and China's Feng Shanshan closed in a seven-way tie for fourth at 5 under, while last year's champion, Chie Ariumra, shared 11th place.