During a band's performance at a square in Osaka, a young man suddenly rushes the stage. The young man grabs the mic and begins to sing. The audience is stunned by the man's actions at first, but they become overwhelmed by the young man's voice.After the song, the band and the band's manager, Kasumi, ask about the young man's story. The young man tells them that he doesn't know, because of his memory loss. Kasumi is interested in the man's singing talents. Kasumi then nicknames him "Pochi Man" and lets him work in the studio. The young man becomes the singer for the band, but a big problem occurs due to his memory loss.
The Ramonji title for Yamashita's movie is Misono Yunibasu (味園ユニバース).According to the article at AsianWiki Misono was a building that housed restaurants and shops. In the building was a popular cabaret called Yunibasu, or Universe. It closed down in 2011 but a live club took its place under the same name.
La La La At Rock Bottom will have its World Premiere at the International Film Festival Rotterdam. If Ard does not catch this during his time at the festival... there will be consequences.