The Knights of Spectrum

-When the devil emerges, the twelve Knights of colour will protect humanity-

Demetra is an abused young lady of a Marquess household who was born with the powers of the first warrior of the spectral knights. Due to her unpropitious childhood, she becomes reclusive and withdrawn.

But when she is of age, she has to attend the Knights academy with the other eleven knights.

She felt jubilant to leave her house and live in the dormitory and continue her quiet life until the devil emerges but she did not expect her peaceful life will be thrown into chaos.

When she uncovers the reason for her brother's hostility and when she gets entangled with the white knight, Demetra begins to unveil secrets of herself and her darkest past.

She realised that she had to deal with more than just the devil.

Warning:
Mature content in later half of the book.
Its a three way relationship. Female lead ends up with two male leads.