There's a japanese metal band called ZENI GEVA that are very good. They don't have any visual elements (costumes, makeup etc) and don't seem to be very popular in Japan. Their music is very heavy and intense, no guitar solos or pop singing.
They've been going for about 20 years now, they also did some tours of America, Europe and Australasia.
I suggest you check them out if you like heavier, so-called 'industrial' style metal such as MINISTRY and GODFLESH.