It's June of their third year of high school, and Takumi has an important anniversary to attend back in his hometown. He wants to invite Gii along for the trip, but time and scheduling and possibly broken promises stand in the way.
Tonoin Kei, a musical genius, becomes the new conductor of Fujimi, clashing with the group's leader, Morimura Yuuki, who is unaware of Kei's feelings for him.