The main character is a ninja named Ryu who serves a secret organization that carries out missions for the authorities without showing his true face. He meets the widow Kayo, whose husband, a samurai, died under mysterious circumstances. Kayo is now isolated, as women at that time were not allowed to go out without a man, and her life is confined only to the walls of her home. However, she discovers a strength in herself that she did not know before.

After misfortune befalls her father's business Elena arrives to the capital with her mother, seeking a new hope with her entrance into the most prestigious academy. She crosses paths with Sebastian, the young duke, sparking an undeniable curiosity and attraction. As Elena blossoms into a young woman, her feelings for Sebastian deepen, but social divide and the weight of each of their duties to family threatens to keep them apart. Despite knowing her place Elena can't resist the pull of Sebastian's charming smile and kind heart. As tensions simmer between them, Elena must navigate the complexities of her own status and the pressures of the capital. Will their love prevail or will the constrains of Sebastian's position and expectations of society tear them apart? Dive into a tale of forbidden love, self discovery and the unyielding power of the human heart.