Episodes 4-6 of the Soukyuu no Fafner: Dead Aggressor - The Beyond series.

Episodes 7-9 of the Soukyuu no Fafner: Dead Aggressor - The Beyond series.

The musical composition formed a dwelling power in the girl. A legendary opera, a magnificent composition created in the past. A new life—"Musicart"—imbued with the score. An ephemeral, beautiful, and fateful tale of girls fighting with the power of musical scores in a world where music has been forgotten. They just aim for the delight that lies beyond. Takt Op. connects music to tomorrow. (Source: MAL News)

His name is Lupin III. He is a gentleman thief whose grandfather was the renowned phantom thief Arsène Lupin. When it comes to the art of thievery, there is nothing Lupin III cannot steal; whether it be jewels, works of art, hidden treasures, the secret to immortality, or the heart of a pretty girl. Lupin's partners are Daisuke Jigen, a great gunman; Goemon Ishikawa, a master swordsman; Fujiko Mine, a devilishly clever femme fatale. There is Inspector Zenigata, a relentless ICPO officer, consumed with an obsessive desire to apprehend the masterful thief.