Ra Group

The Ra-Group are the judges of the Gurongi game and Daguva's right hand men.

Ra-Baruba-De
Ra-Baruba-De (ラ･バルバ･デ) is the first Ra to appear, assuming the guise of a Rose-Tattooed Woman (バラのタトゥの女), she is labeled "Unidentified Life Form B#1" (未確認生命体Ｂ群１号) and served as the judge for Zu and Me group Gurongi, as well as bringing Go into the game before making visits to Nagano. Though glimpses of her true form were seen, she never assumed it before any human and was believed by Ichijo to be #0. However, when she realizes how far humans have changed after being wounded by Ichijo, Baruba hints the Kuuga/Daguva relation before she hospitalized the detective for being able to actually hurt her and starts to warn the other Gurongi to no longer underestimate the humans. During Daguva's attack, she is encountered by Ichijo as she reveals that humans will soon be "like the Gurongi" before running off, with Ichijo forced to use 8 Nerve-Breaking Bullets (神経断裂弾) to take her down as her lifeless body falls into the sea and is unable to be found.

Ra-Dorudo-Gu
Ra-Dorudo-Gu (ラ･ドルド･グ) is a condor-like Gurongi armed with a pair of tonfa, Dorudo assumed the form of a man in black with white robes on him, he is labelled by the police as "Unidentified Life Form #47" (未確認生命体第４７号) and "B#9" (Ｂ群９号). He carries an abacus which he uses to count the number of kills by the Go Group Gurongi until Ichijo destroyed it with a Marking Bullet, forcing the Gurongi to reveal his true form in a hit and run attempt to kill Ichijo. However, as a result, Dorudo lost his purpose as the game's overseer and is forced to fight for his life against Gadoru as Ichijo arrives to the scene. Dorudo eventually attempts to retreat from the fight and is pursued by Sugita and Sakurai who shoot him dead with the completed Nerve-Breaking Bullets.