Who's this guy that uses twelve in tournements?

I’ve been noticing this guys that’s been using twelve alot in tournys, he’s pretty good. I think his name is like Yamachan in the world or something like that. Anyway, I was wondering if anyone noticed him like i did. kinda makes me wanna learn twelve

Yamazaki, you can see him in some of the gamers vision ranking battles

Chikyuu is another good Twelve player; not too sure what where you can find vids of him. You also can’t forget about Shogo… there’s a vid of him playing Twelve on CV.com, in the 3on3 SBO qualifiers, I think (keep in mind, Twelve isn’t his 1st character… or even his 2nd, IIRC).

Chikyuu is on Evo '02.