Check out the clip for Yellow Magus here: http://www.youtube.com/watch?v=iyIaweKZvcM
Which I can't embed, so here is their track Mountain Mountain from the My Lost City album.
Their current tour which is in Sendai tonight, has already sold out next month in Tokyo and Osaka.
Official website: http://www.geocities.jp/cerofan/
Kakuba Rhythm site for Yellow Magus: http://www.kakubarhythm.com/special/yellowmagus/
I found cero earlier this week while tumbling through 10000 professional tracks. A good place to check out new indie Japanese music.