葛西純
At the young age of 19, Acid would go to Japan to work for Big Japan Pro Wrestling. They had a working relationship with CZW. Acid would drop the CZW World Junior Heavyweight Championship to Winger on July 2 in Tokyo. He would feud with Ryuji Ito. Then on August 19, 2001 he beat Jun Kasai for the CZW World Junior Heavyweight Championship. On December 2, 2001 he defeated Ruckus for the BJW Junior Heavyweight Championship in Philadelphia at CZW Cage of Death III. He would drop the title to The Winger at Harder Than Hardcore Series 2002 on March 3, 2002 in Yokohama.