大原はじめ
On February 12, 2021 at "Destination 2021 ~Back To Budokan"~ in the Nippon Budokan, Yoshioka defeated GHC Junior Heavyweight Champion Daisuke Harada in just over 10 minutes to win the belt for the first time. After the match, he said that he was 'proud to be a part of Noah's Junior division'. He would go on to lose the belt to Atsushi Kotoge on March 14 at "Great Voyage 2021 in Fukuoka", ending the run at just over a month and without a successful defence. On May 2, Yoshioka attacked tag partner Yo-Hey, betraying "Full Throttle" and joined "Stinger" with Yoshinari Ogawa &amp; Wrestle Gate alumni Hayata &amp; Yuya Susumu. Other "Full Throttle" member, Hajime Ohara, joined Daisuke Harada, Atsushi Kotoge &amp; Junta Miyawaki's team. The two stables had an 8-man tag team match the next day, where "Stinger" won after Susumu pinned Miyawaki. Yo-Hey joined Nosawa Rongai's new unit, "Los Perros del Mal de Japon", and Yoshioka met him at "Muta the World" on June 27, where Yoshioka teamed with "Stinger" mates Ogawa &amp; Susumu to take on "Los Perros del Mal de Japon"'s Yo-Hey, Nosawa &amp; Dragon Gate's Eita. Yo-Hey pinned Yoshioka after 18 minutes with the "Yo-Roll". On July 11, after Daisuke Harada &amp; Hajime Harada defended their GHC Junior Heavyweight Tag Team Championships, Yoshioka &amp; Susumu stepped up to challenge them. The match was scheduled for "Cross Over 2021 in Hiroshima" on August 1. On July 27, Noah held a 'Junior Team Game' in which "Stinger" was involved. In "Stinger"'s match against Noah Regular Army, Yoshioka scored a submission elimination over former tag team partner Hajime Ohara. He made it to the last two, before being eliminated by Daisuke Harada, and thus "Stinger" was eliminated from the tournament.