| From: | Japan 🇯🇵 |
| Gender: | Male |
| Hardest Boulder (Worked): | 8C |
One of the world's most prolific bouldering developers. Thousands of first ascents in Japan, including Mizugaki, Ogawayama, Mitake, Mitsumine, Yaendani, and more.
Published the first bouldering guide in Japan in 1999: the 'Kuro-hon' or black book guide to Ogawayama, Mitake and Mitsumine.