"Rock wa Lady no Tashinamideshite" centers on the life of Rinko Yamato, a high school student who leads a double life as a rock musician. By day, she is a reserved and diligent student, adhering to societal expectations and maintaining a polished demeanor. By night, she transforms into "Lady," the lead guitarist of a rock band, embracing a rebellious and passionate persona. The series explores the tension between her two identities, as Rinko navigates the challenges of balancing her personal aspirations with the pressures of conformity.

The narrative delves into Rinko's relationships with her bandmates, each of whom brings distinct personalities and struggles to the group. The band's dynamics are tested as they pursue their musical ambitions, facing obstacles such as creative differences, rivalries, and the demands of the music industry. Rinko's journey is further complicated by her interactions with classmates and family, who remain unaware of her secret life. The series highlights themes of self-discovery, individuality, and the pursuit of passion, as Rinko strives to reconcile her dual identities and find her place in the world.

Key characters include Rinko's bandmates, who each contribute to the band's growth and Rinko's personal development. Their interactions and conflicts drive much of the story's emotional depth, as they navigate the highs and lows of their musical journey. The series also features supporting characters from Rinko's school and family, whose perspectives and expectations add layers to her internal struggle. Through its exploration of music, identity, and relationships, "Rock wa Lady no Tashinamideshite" presents a compelling narrative that resonates with themes of authenticity and perseverance.