After training together in NJPW's dojo since February 2012, the two began wrestling in the federation as young lions under their full names Sho Tanaka and Yohei Komatsu in November of the same year, starting a feud with each other the following month.

They became tag team partners on March 3, 2013, until the promotion sent them on an overseas learning excursion in January 2016 which notably saw them wrestle in Consejo Mundial de Lucha Libre (CMLL) under the names Raijin and Fujin, and in Ring of Honor (ROH) as The Tempura Boyz.

In August 2021, during the 2021 edition of the tournament, the duo suffered a losing streak, leading to Sho turning on Yoh and disbanding the team.

[12] At Homenaje a Dos Leyendas, the two, together with Okumura and Kamaitachi, lost against Dragon Lee, Máscara Dorada, Místico and Valiente in a Best two-out-of-three Atómicos "Lucha Libre rules" tag team match.

[13] During their time in Mexico, Tanaka and Komatsu also worked for other local promotions, including Desastre Total Ultraviolento (DTU) and Liga Elite.

[21] In July 2017, Tanaka and Komatsu took part in NJPW's two-day G1 Special in USA event that the promotion held in Long Beach, California.

[22][23] The following week, they traveled with the NJPW crew to take part in an event held by Revolution Pro Wrestling (RevPro) in London, England.

[24] On September 16, 2017, at NJPW's Destruction in Hiroshima show, the Roppongi Vice tag team of Beretta and Rocky Romero had their final match together before amicably splitting up.

[30] Later that month, Roppongi 3K entered the 2017 Super Jr. Tag Tournament for the first time, defeating Hirai Kawato and Kushida in the first round and Los Ingobernables de Japón (Bushi and Hiromu Takahashi) in the semifinals, before defeating Super 69 (ACH and Ryusuke Taguchi) in the finals at Power Struggle on November 5, becoming the first team to win the tournament as the current Junior Heavyweight Tag Team Champions.

[35][36] They soon dropped the titles to Suzuki-gun (El Desperado and Yoshinobu Kanemaru) on New Japan's 46th Anniversary Show, in a three-way tag team match, which also involved Bushi and Takahashi (the latter being their former CMLL stablemate as Kamaitachi).

[40] At NJPW's 47th Anniversary Show on March 6, Roppongi 3K defeated Bushi and Takagi to win the titles for a third time, eventually losing them to Bullet Club (El Phantasmo and Taiji Ishimori) on June 16 at Kizuna Road.