An ancient seal has been broken, sending a flood of demons into the mortal realm. Hizuru Oborozuki and Takuya Hijou, descendants of the great savior who banished the demons in the past, must fight the evil spirits using their mystical powers. In order to give the world a fighting chance, Takuya uses his music to transform Hizuru into a beautiful warrior. Some things are worth fighting for, but is the Earth one of them? (Source: TOKYOPOP)

This is an official adaptation of the OVA anime, Macross II.

A.D. 2009 - The human race is in the middle of a three-way war with a race of giant humanoid aliens called the Zentraedi (male) and Meltrandi (female). After executing a space fold that sent it and part of South Atalia Island to the edge of the Solar System, the space fortress Macross is on its way back to Earth. During a small skirmish with Zentraedi forces, young pilot Hikaru Ichijo rescues idol singer Lynn Minmay and their relationship develops as they're stranded somewhere within the ship. But shortly after returning to Macross City, Minmay is captured by the Zentraedi, and Hikaru and female officer Misa Hayase end up back on Earth - only to view the aftermath of the destruction of their civilization. Only a song discovered eons ago - along with Minmay's voice - can determine the outcome of the war. (Source: AnimeNewsNetwork)