Ultraman R/B is going to be the 6th Series in "New Generation Hero" (Officially used by Tsuburaya) Series. The catchphrase of the series is "This is the Story of We Brothers. We will begin Ultraman". "We will begin Ultraman" （ウルトラマン、始めます） might be taken from "We will begin Part-Time Job" （バイト、始めます）referring to their Human Hosts working in Select Shop.
Protagonists Katsumi Minato the Elder Brother and Isami Minato the Younger Brother were living with their Sister who is a High Schooler and their father who owns a Select Shop. One day they some how get the R/B Gyro and R/B Crystal. Katsumi transform into Ultraman Rosso who has the power of Fire and Isami transform into Ultraman Blu who has the power of Water. Minato Brothers will clash together sometimes but they grow together facing a large enemy. This story is about "Family" centered around brothers.
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