日高郁人
Hayato debuted in Pro Wrestling Zero1 as a M-Pro representative in October 2009, taking part in the annual "Tenka-Ichi Tournament". He eliminated Munenori Sawa and Hajime Ohara, but was defeated at the semi-finals by Ikuto Hidaka. He continued appearing sporadically for the promotion, generally opposing Hidaka and his ally Takuya Sugawara.