The kingdom has been usurped by Prime Minister Sado XVI, who conspired with the demonic race, and several years have nearly passed since then. Princess Maria, exiled from her homeland, hides her true identity and face while rising as the savior of the revolutionary army known as "Celine's Star." She fights against the demonic tyranny, becoming a beacon of hope for the people. However, one day, tragic news reaches Maria: due to a demon-led resistance purge, many of her comrades have been executed. Despite being unprepared, Maria decides to launch a rescue operation as bait. But this was a trap set by the enemy's female general. Betrayed by a comrade, she is captured alongside her partner, the "Black Cosmos," and Celine's Star falls to the earth, on the verge of ruin. Yet this is merely the surface appearance—for in the end, the star of hope will shine once more, leading to a "HAPPY END."