Ranka Lee is scouted by an entertainment production company. While Sheryl is rehearsing for her Sayonara live concert on the final day of her tour, news arrives that the Macross Galaxy fleet is being attacked by a large horde of Vajra. As a result, President Howard Glass decides to inform his citizens of the new enemies' existence.

Sheryl gives a consolation concert at planet Galia 4, but because of an undisclosed illness she cancels her concert, which causes a huge riot.

Ranka's pet Ai-kun suddenly disappears. Ranka asks Brera for help and they look for Ai-kun together. Along the way, Brera asks Ranka who does she sing for? Ranka, who's beginning to feel doubt about her singing, starts to consider her true feelings. Meanwhile, Sheryl tells Alto that she will no longer sing.