"IDOLiSH7 Vibrato" is a series of short anime episodes that expand on the narrative of the main "IDOLiSH7" anime, focusing on the idol group IDOLiSH7 and their journey in the entertainment industry. The series provides additional context and character development, offering fans a deeper look into the lives and personalities of the group members.

The story revolves around seven young men—Riku Nanase, Tenn Kujo, Yamato Nikaido, Mitsuki Izumi, Tamaki Yotsuba, Sogo Osaka, and Nagi Rokuya—who form the idol group IDOLiSH7 under the management of Tsumugi Takanashi. Each episode delves into different aspects of their careers and personal lives, highlighting their struggles, growth, and camaraderie. The group faces various challenges, including intense competition, personal insecurities, and the pressures of fame, as they strive to make a name for themselves in the idol industry.

One episode focuses on Riku Nanase, the group's center, who struggles with his health and the fear of letting his teammates down. Another episode explores the complex relationship between Riku and his twin brother, Tenn Kujo, who is a member of the rival idol group TRIGGER. The series also sheds light on the dynamics within IDOLiSH7, such as Mitsuki's determination to prove himself, Yamato's leadership, and Nagi's cultural adjustments as a foreign member.

The narrative emphasizes the importance of teamwork and perseverance, as the members support each other through their individual and collective challenges. The series also introduces other characters from the "IDOLiSH7" universe, including rival groups and industry professionals, adding depth to the overarching story.

Overall, "IDOLiSH7 Vibrato" serves as a complementary piece to the main series, enriching the viewer's understanding of the characters and their journey. It balances moments of humor, drama, and heartfelt emotion, providing a well-rounded portrayal of the idol experience.