The first round of the women's golf domestic tour tournament was held in Tomakomai City, Hokkaido, and 25-year-old Kotone Hori took the lead with 5 unders.
Hori, who is aiming for his first victory on the tour, went around with six birdies and one bogey, and took the lead with 5 unders.
In second place with a one-stroke difference, 10 players including Yuna Nishimura, Chie Arimura, and Ayaka Takahashi are in a melee battle.
In addition, eight players, including Sakura Kogure and Shiho Oyama, who are the top prize money winners this season, are in 12th place, one stroke behind.
Mone Inami, who has been appointed as the representative of the Tokyo Olympics, was behind in 56th place with one over.