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)

Tohru learns about a new Maid Café had opened nearby and decides to work there during her free time. Kobayashi and Kanna drop later at the café to check on her just to find that she has become their cook. Tohru uses dark magic to enchant the dishes served there, which makes the café a success, until she decides to quit, but before leaving, she teaches the other maids to use dark magic as well. A few days later, Tohru and Kobayashi are attacked by Ilulu, an extremist from the Chaos Faction who berates Tohru for coexisting with humans. Tohru gets herself in a disadvantage against Ilulu as she protects the city from her attacks until Kobayashi enlists Elma's help by bribing her with sweets, allowing Tohru to fight with all her power and defeat Ilulu. Ilulu later returns and attempts to seduce Kobayashi but fails. Certain that Kobayashi has not fallen for her because she's a woman, Ilulu retreats for a while, but not before transforming Kobayashi into a male.

The OVA will tell the childhood stories of the main characters, adapting from the first volume of Satoru Yamaguchi's original light novel. Bundled with the seventh limited edition volume of the manga.

After defeating a mysterious enemy, Yuuma Tsukumo, along with the help of Kaito Tenjou and Ryouga "Shark" Kamishiro, has thwarted the Barians' plans. However, Yuuma is still on a quest to retrieve the Number Cards to restore Astral's memories. The Seven Barian Emperors catch wind of Yuuma and Astral's endeavors and begin to collect the cards themselves to achieve their ultimate goal: destroying Astral's world in exchange for saving their own. Though only five of the emperors are present, they unanimously decide on annihilating Astral and Yuuma once and for all. Elsewhere, with their newfound powers of ZEXAL, Astral and Yuuma work to eliminate the enemy force that threatens Earth and the rest of the universe. Yu☆Gi☆Oh! Zexal Second unveils the mysteries and unpleasant surprises that lie in the wake of Yuuma's adversities. As Astral struggles to accept his past and the consequences it may have brought, will the gods continue to shower their fortune upon Yuuma on yet another perilous adventure?