Luminous Valentine

The fifth Demon Lord, also known as the Queen of Nightmares, is a vampire queen with a noble background, known for her elegance and a beautiful appearance characterized by silver hair and golden-silver mystical eyes. She once eliminated the progenitor of the vampire race who created her, becoming the leader of her clan. About 2000 years ago, after Veldora destroyed the capital of her nation at the time, she established the nation of Ruberios centered around a religion to protect humans for the survival of the vampire race. From about 1500 years ago, she became the deity of this religion, known as Luminous, and appointed a fearsome-looking Roy as the public face of the Demon Lord, while the management of the nation was handled by subordinates like Louis, and she herself went into seclusion.

For a thousand years, she spent time as friends with Chloe, who had traveled back in time, and was informed about Rimuru and the future. After Hinata reincarnated into this world, she sealed Chloe's body and Chronoa, and kept an eye on Rimuru's actions. However, she internally panicked as the unfolding events, such as the conflict between Rimuru and Hinata and Rimuru declaring himself a Demon Lord, differed from the future she knew. In Volume 6, she joined the Demon Lords' banquet in disguise, intending to protect Rimuru if necessary, but her true identity was exposed due to the carelessness of Milim and Veldora. In Volume 7, she dealt with the conspiracy of the Sage of the Seven Days by herself, and in Volume 8, she punished Veldora before making amends with Rimuru and signing a non-aggression treaty with the Jura Tempest Federation for 100 years. After attending the founding festival of the Jura Tempest Federation, she bestowed upon Rimuru the secrets of faith and grace, hoping for cultural and technological exchanges. In Volume 11, during a music exchange in her country, she nearly lost Chloe and Hinata due to an attack by Granbell and Yuuki, but with Rimuru's cooperation, she managed to revive them.

She possesses the Unique Skill "Lust," which governs life and death. In Volume 11, driven by the grief and anger of Hinata's murder by Granbell, she awakened to the ultimate demonic ability "King of Lust (Asmodeus)," and retrieved Hinata's soul, which had been absorbed into Chloe's "Infinite Prison."