The Duke of Death and His Black Maid follows a young nobleman known as the Duke, who suffers from a terrible curse placed on him during childhood. Anything living that he touches instantly loses its life, forcing him to live isolated in a lonely mansion away from his family and society. Despite this tragic fate, his days begin to change thanks to Alice Lendrott, his loyal maid who stays by his side without fear and constantly brings warmth, humor, and affection into his life.

Although the Duke deeply cares for Alice, his curse prevents him from touching the person he loves the most. Together with Alice and the people they meet along the way, he searches for a way to break the curse while uncovering the secrets behind the witch who changed his life. Their journey is filled with emotional moments, magical mysteries, and the struggle between wanting closeness and being unable to reach out.

Also known as Shinigami Bocchan to Kuro Maid, The Duke of Death and His Black Maid combines romance, fantasy, comedy, and supernatural drama. Through the relationship between the Duke and Alice, the series tells a touching story about love, patience, and finding happiness even when fate seems impossible to overcome.