"Tokyo 7th Sisters: Bokura wa Aozora ni Naru" is a multimedia franchise that includes an anime series based on the mobile game of the same name. The story is set in a near-future Tokyo where the entertainment industry is dominated by idol groups. The narrative centers on the revival of a once-popular idol group, 7th Sisters, which disbanded after a tragic accident. The protagonist, Haru Yonemura, is a young man who becomes the manager of a new idol group, 777☆SISTERS, formed to carry on the legacy of the original 7th Sisters.

Haru is tasked with guiding the new group, which consists of seven members, each with distinct personalities and backgrounds. The members include Musubi Kisaragi, the cheerful and determined leader; Sumire Takanashi, a shy but talented singer; Shiori Shinomiya, a calm and composed member with a mysterious past; Hime Shiratori, a bubbly and energetic girl; Tsubaki Hasegawa, a serious and hardworking member; Nico Hiiragi, a playful and mischievous character; and Rona Sakuraba, a reserved and introspective member. Together, they navigate the challenges of the idol industry, striving to achieve success while overcoming personal and collective struggles.

The plot explores themes of perseverance, teamwork, and the pursuit of dreams. As the story progresses, the group faces various obstacles, including rival idol groups, internal conflicts, and the pressure of living up to the legacy of the original 7th Sisters. The series delves into the personal growth of each member, highlighting their individual journeys and the bonds they form with one another. The narrative also touches on the impact of the original group's disbandment, with flashbacks and references to the past providing context for the current events.

The anime incorporates elements of music, drama, and slice-of-life, blending emotional moments with lighthearted interactions. The performances of the idol group are a key aspect of the series, showcasing their development as artists and their ability to connect with their audience. The story culminates in the group's efforts to hold a successful concert, symbolizing their growth and unity as a team. Through its exploration of the idol industry and the personal struggles of its characters, "Tokyo 7th Sisters: Bokura wa Aozora ni Naru" offers a compelling narrative that resonates with fans of the genre.