In "Legendary Idol Eriko," Eriko Tamura is the only child of Kousuke Tamura, the head of the famous music company Tamura Productions, and Minako Tamura, a former beloved idol singer. She is gifted with a natural singing ability and a strong passion for the entertainment world. A devastating car accident kills her father and leaves her mother in a coma. Placed under the care of Mr. Uchida, her father's most trusted associate, Eriko begins a musical path that her parents had tried to keep her from. Making things worse, her uncle schemes to ruin her progress. Despite these challenges, Eriko grows into a cherished idol, winning over fans all across Japan.