Living in a dormitory; Kuroko, Kasamatsu, Takao, Imayoshi would usually play basketball with each other but that wasn't enough. However, they found an outlet for their frustration -streetball. Thus, the four boys along with Hayama -Takao's childhood friend and Himuro -Hayama's friend from America with the addition of Ogiwara, took the courts by storm calling themselves "RimFire".