Lucy was turned into a vampire alongside her twin sister, Alis, in 1886 by the enigmatic Vampire Overlord known as "The Baron." The sisters have been inseparable ever since, adapting to the changing times while maintaining their bond. While Alis embraced the more calculated and strategic aspects of their new existence, Lucy chose to focus on enjoying her eternal life, seeing it as an endless opportunity for fun and excitement. 

Lucy shares the rebellious, delinquent streak that runs through her close-knit group of friends. Whether it's sneaking into places she shouldn't be, bending the rules, or stirring up trouble just for the thrill of it, Lucy is as much a rule-breaker as the rest of them. Though she loves to live in the moment, Lucy’s carefree attitude is her way of coping with the darker aspects of her eternal life, especially the loneliness that occasionally creeps in.