In an era when the beautiful Moonlight King was still just a prince, he lived in solitude, his mother dead and his father bedridden, until the coming of his half-brother Magrev.

In an era when the beautiful Moonlight King was still just a prince, he lived in solitude, his mother dead and his father bedridden, until the coming of his half-brother Magrev.

His newfound sibling wishes to be friendly, but the prince plans to use him as a sacrifice instead.

The two's relationship becomes twisted, with their maid, Dovy, at the center, and the King's condition takes a turn for the worse…