This is an after story of Kira Kira It has two parts: First and Second Stage
First stage concentrates on hotblooded young guy named Souta Honda He loved two things in this world: rock and his childhood friend Yui Hoshimoto
But attempts to improve relations with both always turned out a total disgrace for him After one more fail he promised Yui that he'll form his own band and became "bright like the sun" to make her love him
Second stage is, in a way, a continuation both for Souta's story and original Kira Kira story It tells about preparations for the large concert celebrating the 5th anniversary of Murakami's group, Happy Cycle Mania and bonds all old and new characters together
