 Shiga debuted for NOAH at their first show on August 5, 2000 where he teamed with Naomichi Marufuji to defeat Masao Inoue and Yoshinobu Kanemaru.The following day, Shiga wrestled in the second to last match teaming with Daisuke Ikeda in a losing effort to Mitsuharu Misawa and Yoshinari Ogawa.After debuting in NOAH, Shiga continue to remain in the midcard but would get more to participate in tournaments and title matches, by the end of 2000 he joined Jun Akiyama's stable