Akimitsu Suwamura was a Japanese yakuza who was affiliated with the Kijin-kai subsidiary of the Omi Alliance during the 2010s. He doubled as a staffer aboard "the Castle" floating entertainment district, and, in 2019, he was beaten down by Kazuma Kiryu and the Watase-gumi during their takeover of the ship from Homare Nishitani III.