The three members of Kalafina, a Japanese pop music singing group, prepare for their 10th anniversary concert at the Budokan in Tokyo. The singers-Keiko, Wakana, and Hikaru-visit their home towns and talk about their childhood and early experiences with singing and performing. They also talk about how their different singing styles work together to make a unique sound. They rehearse, select costumes, and plan the order of the setlist. They play several acoustic concerts following up to their big January anniversary concert. The concert is a success, and key parts of songs that they had planned and rehearsed obsessively turn out just the way they had intended and make a big impact.