Ashima Shiraishi
6. Horizon, V15
“On March 22, 2016, Ashima Shiraishi made the second ascent of Horizon (V15) on Mt. Hiei, on the southern island of Kyushu, near Miyazaki, Japan. Shiraishi, who turned 15 on April 3, is the youngest person to ever climb V15 and also the first female to boulder the grade.
In 2014, Shiraishi climbed Golden Shadow in Rocklands South Africa making her one of only five women to climb V14. In December of 2015, she climbed Phenomena in Hinokage, Japan, a V14 that Dai Koyamada established. Koyamada and Shiraishi climbed extensively together over the years. Koyamada suggested Shiraishi try Horizon.“
--Climbing.com