Shohoku's "speedster" and point guard, Ryouta Miyagi, always plays with brains and lightning speed, running circles around his opponents while feigning composure. Born and raised in Okinawa, Ryouta had a brother who was three years older. Following in the footsteps of his older brother, who was a famous local player from a young age, Ryouta also became addicted to basketball.

In his second year of high school, Ryouta plays with the Shohoku High School basketball team along with Sakuragi, Rukawa, Akagi, and Mitsui as they take the stage at the Inter-High School National Championship. And now, they are on the brink of challenging the reigning champions, Sannoh Kogyo High School.