In a world where Masquerades -general-purpose piloted humanoid robots- perform in all sorts of fields,

Luca stole the latest military Masquerade from the aerial battleship Arianrhod and escaped together with her younger sister.

Seven years prior, her country was suddenly met with the slaughter known as "revolution" as well as the oppression that followed.

For this girl who only had the barest means of survival since then, this was her method of rebellion.

While soaring through the skies in her stolen Masquerade, Luca was reunited with a certain girl……

"Conquer the world. And then… hand it over to me.

Because I will definitely create a beautiful world, a love-filled world where everyone can live happily, a pure world."

Starting the Fourth World War, the two girls known as the Demon King and the Witch.

Their battles of love and hate are written here!!