One day, high school student Kenji suddenly had an idea and invited his friends Ota and Asakura to form a band together, but none of them knew anything about musical instruments. Their band was a bass, another bass, and drums, a very unique configuration. When they played the first note, they were immediately overwhelmed by an unprecedented feeling, and the music shocked them. After that day, they decided to name the band "Classical Martial Arts", but found that there was already a "Classical Art" band in the school. The two bands obviously had the same type, but after watching each other's performances, they immediately collided with the spark of cooperation. So they are ready to participate in the upcoming rock music festival...