The Devil King's Sonata

Luna Xia thought summoning a minor demon would be enough to get back at her bullying classmates, but fate had other plans. Instead of a lowly imp, she accidentally summoned the mighty Devil King himself! Her ordinary life spirals into chaos as supernatural beings—a seductive succubus, a righteous angel, and a chivalrous knight—crash into her world without warning. These powerful entities ignore Luna’s doubts entirely, plunging her into one outrageous situation after another.

The Devil King, Lucifer, scoffs at the idea of love, declaring romance utterly unromantic. Meanwhile, Luna desperately tries to negotiate a refund for this unexpected supernatural package, only to be told all sales are final. Stuck with an arrogant, overpowered demon lord, the timid sand-carving artist finds herself in way over her head. As their bizarre partnership unfolds, Luna must navigate a whirlwind of supernatural drama, whether she likes it or not.