[3] On August 24, 2010, Kodama made his New Japan Pro-Wrestling debut teaming up with fellow debutante Kazuhiro Tamura and were defeated by Ryusuke Taguchi and Taichi at Never.1.

[3] At Smash.18, on June 9, Kodama participated in the Smash Championship tournament but would be eliminated in the first round by Big Japan Pro Wrestling's Shinya Ishikawa.

[6] 14K debuted for the International Wrestling Revolution Group on May 13, teaming up with Douki and Secret Sasuke and losing to Argenis, Fénix and Super Fly.

[6] At WNC Starting Over, Kodama and Byron teamed up with Último Dragón to defeat Josh O'Brien, Tomoka Nakagawa and Yoshiaki Yago.

In the semi-final of the Kito Cup 2012, Kodama teamed up with Daisuke Harada and Hoshito Takahashi to lose to Jiro Kuroshio, Lin Byron and Tsubasa.

[13] On April 30, 2015, Kodama announced he was leaving for an indefinite learning excursion in North America, starting with a three-month stay in Canada with Grand Prix Wrestling.

[17] On December 7, Kodama, Andy Wu, Daiki Inaba, Jiro Kuroshio, Seiki Yoshioka, Koji Doi, Kumagoro and Kohei Fujimura formed a stable named New Era (stylised in all caps).

[20] On February 22, Kodama, Inaba and Fujimura defeated Jun Kasai, Nosawa Rongai and Shuji Kondo to win the UWA World Trios Championships.

[22] On July 12, Kodama turned on his tag team partner Ganeski Tanaka allowing Seigo Tachibana and Shotaro Ashino to pick up the win.

[32] At Pro Wrestling Love in Yokohama 2019, Kodama and Ashino successfully defended their titles against Strong Hearts’ El Lindaman and Shigehiro Irie.

On May 24, Kodama debuted for Big Japan Pro Wrestling (BJW) teaming with Kazuki Hashimoto to defeat Kosuke Sato and Kota Sekifuda.

[39] On June 30, Kodama lost to Koji Iwamoto in a World Junior Heavyweight Championship number one contendership match, his first pinfall loss in All Japan.

[42] On December 27, he teamed with Omori to participate in the Jr. Tag Battle of Glory, losing to eventual winners Dan Tamura and Hikaru Sato in the semi-final.

[45] On March 6, Kodama, alongside Jake Lee, Hokuto Omori, Koji Doi, Kuma Arashi and Tajiri, debuted as Total Eclipse.

[46] They defeated Ashino, Iwamoto, Dan Tamura, Hikaru Sato and Suwama in a ten man tag team elimination match which didn't include Arashi.