Thanks to Markku Laine and Koji Mrwk, I came across this video of a Japanese climber making the 3rd ascent of Dai Koyamada's Hydrangea, hard 8C, at Shiobara, Japan, a couple of weeks ago.
The climber's name is Motochika Nagao (thanks Masa!). He says that he:
is a Japanese engineer and weekend warrior.
I always go to Shiobara, Horai, Mizugaki etc- for bouldering.
Hydrangea was my dream from four years ago, when I first visited Shiobara. I'm very happy.
I want to keep trying various problems.
Hydrangea was put up by Dai Koyamada back in 2005 and didn't get a second ascent, by Daniel Woods, until February this year. Daniel agreed with Dai's suggestion of "hard 8C".
Evidently there are a lot of very strong climbers that most of us know nothing about...