When Minato Asano moves to a new high school, she finds herself eating lunch alone whilst being looked at strangely by her peers for carrying around a trombone despite there being no music clubs. Fate would have her meet another girl named Hibiki-sempai who tries to talk her into joining her band.
The manga is written and illustrated by Yayoi Oosawa and is published by Ichijinsha Ltd.
The manga provides examples of:
- Berserk Button: Hibiki-sempai aggressively calls Minato a "jerk" when she pointed out that them playing with pros instead of having fun playing music was the same mindset her father had.
- But Not Too Foreign: Ema is half-Japanese, half-Russian.
- Bifauxnen: Ema resembles a young man due to her short hair.
- Dark and Troubled Past: Minato used to be an enthusiastic trombone player until she was chosen to play in a competitive team over an upperclassman. Because of that, she was relentlessly bullied by her bandmates until she decided to give up on music.
- Delinquents: When Chika first met Sakiko, she tried to go off with a grown man alongside other instances of Troubling Unchildlike Behavior.
- Friends with Benefits: Chika refers to her relationship with Sakiko as this by outright using the term "fuck buddies" in a conversation with Minato.
- Genki Girl: Hibiki-sempai is a very energetic young woman who is perpetually optimistic.
- Hypocrite: Hibiki-sempai criticizes her father for his views on music while she herself is overly pushing when trying to convince Minato to play alongside professionals.
- Secret Relationship: Minato accidentally walks up on Chika and Sakiko kissing each other.
- Shrinking Violet: Minato is an awkward tall girl who constantly felt that she was being a bother for the other girls.
- Spit Take: Minato spits out her drink in surprise when Chika explained her relationship with Sakiko.