Taichi and Michinoku first interacted in December in 2010 as part of Kojima-gun,[1] which morphed into Suzuki-gun after they turned on Satoshi Kojima and appointed Minoru Suzuki as their new leader.

Meanwhile, in Pro Wrestling NOAH, Kanemaru would join Suzuki-gun in February 2016, as part of the stable's invasion storyline, before moving to NJPW with them in January 2017.

On the same event, Douki and Yoshinobu Kanemaru challenged for Catch 2/2 (Francesco Akira and TJP) for the IWGP Junior Heavyweight Tag Team Championship, but lost.

After he defeated LIJ stablemate and leader Tetsuya Naito in the quarter-finals, he left Los Ingobernables de Japón and joined the stable, changing the name to Just 5 Guys.

On October 9, Yuya Uemura was revealed as the newest member of Just 5 Guys, teaming with Taichi and Douki to beat Sho, Yujiro Takahashi and Kanemaru.

[23] At Power Struggle (2024) Sanada turned on Taichi by helping David Finlay retain his IWGP Global Heavyweight Championship and left the stable to join Bullet Club's War Dogs faction, reverting the group back to Just 4 Guys.