At Endless Survivor 2014, an event promoted by Big Japan Pro Wrestling on May 5, he teamed up with Masaya Takahashi to defeat Hideyoshi Kamitani and Takayuki Ueki.

In the Wrestle-1 Grand Prix, which was the biggest yearly event promoted by the company, he made his first appearance at the 2015 edition which was also the first ever held, where he defeated Masayuki Kono in the first rounds but fell short to Tajiri in the second ones.

[15] Doi also succeeded in winning the 2018 edition where he teamed up with Shuji Kondo and topped the block B with four points after taking on Takanori Ito and Ryuji Hijikata, Masayuki Kono and Yukio Naya, and Ganseki Tanaka and Tsugutaka Sato, and then moved to the finals where they outmatched Manabu Soya and Daiki Inaba.

[16] At the 2019 and last edition, he teamed up with Inaba and scored a total of three points in the block B after competing against Kumaarashi and René Duprée, Seiki Yoshioka and El Lindaman, and Shuji Kondo and Manabu Soya.

He made his debut in the company at AJPW Dynamite Series 2014 on June 15, where he teamed up with Osamu Nishimura to defeat Masato Shibata and Yutaka Yoshie.

[19] At AJPW Raising An Army Memorial Series on October 2, 2022, he and Arashi unsuccessfully challenged Gungnir Of Anarchy (Ryuki Honda and Shotaro Ashino) for the World Tag Team Championship.

On the first night of the 2021 edition from January 2, he competed twice, first in a battle royal won by The Bodyguard and also involving Francesco Akira, Atsuki Aoyagi, Rising Hayato, Ryuji Hijikata, Yoshitatsu, Takayuki Ueki and others, and secondly by teaming up with Kumaarashi as a sub-group of the "Enfants Terribles" in a losing effort against Evolution (Dan Tamura and Hikaru Sato).

[26] After five years of hiatus, he returned at the 2021 edition where he again teamed up with Kumagoro (this time going under the name of Kumaarashi), won the block D with a total of four points after going against Koji Iwamoto and Ryuki Honda, Zeus and Shigehiro Irie, and Takao Omori and Isami Kodaka, advanced to the semifinals where they outmatched Suwama and Shotaro Ashino but fell short to Kento Miyahara and Yuma Aoyagi in the finals.