After the break up of their old band, guitarist Yuki & drummer Santa decide to form a new one. They recruit bass player Towa, young guitarist Atsuro, and after much persuasion, vocalist Sakuya. Together they form Lucifer and they struggle to make it in the music business, and also to stay together. As well, they have to deal with personal issues, such as parental objections, and watching their old bands succeed ahead of them. Sakuya is the most troubled band member, as he has to deal with his tragic past, and his relationship with teenaged lyricist Aine.

Ren Nanahoshi has been chasing a certain thrill he once experienced at a live festival when he was a child. Now, as a first-year university student, he avoids making friends and practices singing by himself, hoping to find that adrenaline once more. A fateful encounter at a karaoke bar allows Nanahoshi to meet Yuuto Goryou and Wataru Matoba—both of whom are impressed by his voice. The two have been searching for band members, and they want Nanahoshi to be their vocalist. Nanahoshi initially rejects their constant pestering but relents after attending their live show and performing alongside them. Joined by the carefree Rio Kikyou and passionate Banri Shiroishi, the five boys form Argonavis and set their sights on headlining the Destiny Rock Festival. As they begin to work together as a band, they come across the trials and tribulations that come with pursuing stardom.

All stars season of Show by Rock!! featuring all the bands from previous seasons.

The second animated live movie for the BanG Dream! franchise and the sequel to BanG Dream! FILM LIVE. (Source:BanG Dream! Wikia)