Within Teikou Middle School's Basketball Club, there was a powerhouse team, a group of five prodigies known as “the Generation of Miracles”. There was one more player, highly esteemed by those prodigies, a phantom sixth man. The team managed to pull off the outstanding achievement of three consecutive championship wins. Afterwards, a certain incident took place and the team fell apart. This story takes place while they were still in middle school, before each of them went their separate ways.

An adaptation of the Kuroko's Basketball —Replace— novel series, stepping into the court!