My Professor Is the Underworld King

GoodShort synopsis

Aria, a college student pushed to the brink by relentless campus bullying, meets a mysterious man on a luxury Halloween cruise who looks exactly like her secret crush—her professor. Every time they grow intimate, she glimpses a bizarre death in advance, and one by one, these dark premonitions come true. As the deaths pile up, Aria begins to awaken a power that transcends humanity, and she discovers that this cruise is no ordinary party—it is a massive, awakening sacrificial ground. Even more terrifying is the truth about the man who appears beside her night after night: his true identity is tied to the Underworld. And Aria herself is no ordinary human. A divine war that ended thousands of years ago is about to descend upon the mortal world once again, ignited by their reunion...