Yukio "Koyuki" Tanaka spent his middle school years fading away while listening to Japanese pop music and apathetically dragging himself through life—until a chance meeting with the mysterious guitarist Ryuusuke "Ray" Minami. Through this encounter, Koyuki realizes what he has been missing all this time as Ray introduces him to western rock music and ignites his desire to play guitar. Although various struggles plague his path to rock fame, Koyuki refuses to abandon the passion that gave his life purpose, balancing it alongside school, work, and friends. Beck tells the story of the love and trial that accompanies pursuing a professional career in music as Koyuki and Ray work toward realizing the guitarist's dream of the ultimate band.