"If you're alone, rock on!!!!" 'Botchi' Koto Hitori is a girl who is extremely awkward in social situations. She started playing the guitar, dreaming of the shining band activities on stage, but she has no friends. While honing her skills by playing the guitar alone, she uploads a video of her performance to an internet site. One day, Nijika Ijichi, who plays drums in the 'Ketsuzoku Band,' approaches her first. This marks the beginning of a gradual change in her daily life...?!