Konata Izumi: Ordinary high school student by day, interdimensional agent for the Eclipse organization by night. It's time for her to make some serious decisions about where her life is going, and that could mean leaving the world of Lucky Star behind.

A sequel to the highly well reviewed Lucky Summer. The school year is beginning and Konata and Kagami's relationship faces difficult and new troubles. What else? Theirs' isn't the only new love. How will their friends react to their love?