Alexia Blackwood, the ousted eldest daughter of the Blackwood family, appears on the surface as a fallen heiress stripped of her inheritance, but in reality, she is the "Night Queen," leader of the European underworld organization "Shadow Lotus." Her fiancé, Sebastian Harker, has been having an affair with her cousin, Isabella, conspiring to swindle her out of her founder's shares and core regenerative medicine technology, even hiring the Red Raven mercenary group to ambush and kill her. Meanwhile, Alexia's parents are attacked and critically injured by the Razor Gang at the port, but her family, prioritizing the group's interests, refuses to come to their aid. After uncovering the truth, Alexia presents all the irrefutable evidence at Isabella's birthday party and her inauguration ceremony—transfer records, recorded phone calls, Red Raven's confession, and Sebastian's live confession—bringing the traitors to justice. Ultimately, she leads her parents and sister away from the corrupt family, rejoining the legendary path of the Night Queen.
