"My Special One" centers on the life of Hiyori Shirosaki, a high school girl who becomes entangled in the world of show business after a chance encounter with Souya Kuroki, a popular idol. Hiyori, initially uninterested in the entertainment industry, is thrust into the spotlight when a video of her singing goes viral. Despite her reluctance, she is scouted by a talent agency and begins her journey as an aspiring idol.

Souya Kuroki, a member of the idol group LIPxLIP, plays a pivotal role in Hiyori's new life. Known for his aloof and perfectionist demeanor, Souya initially clashes with Hiyori due to her lack of experience and casual attitude. However, as they work together, their relationship evolves, revealing deeper layers of Souya's personality and his struggles with the pressures of fame. The narrative explores their growing bond, as well as the challenges they face in balancing personal aspirations with the demands of the entertainment industry.

The story delves into themes of self-discovery, perseverance, and the complexities of human relationships. Hiyori's journey is marked by her determination to prove herself in a competitive field, while Souya grapples with his own insecurities and the expectations placed upon him. Supporting characters, including other members of LIPxLIP and industry professionals, add depth to the narrative, highlighting the diverse experiences of those in the entertainment world.

Through its exploration of the idol industry, "My Special One" provides insight into the sacrifices and dedication required to succeed, while also portraying the emotional and personal growth of its characters. The series balances moments of humor, drama, and romance, creating a multifaceted story that appeals to a wide audience.