Haruta and Chika are members of their high school wind instrument club that is on the verge of being shut down. The two are childhood friends, and they spend their days practicing hard while also trying to recruit new members. When a certain incident happens within their school, they work together to solve it.

• Soma Saito
• Natsuki Hanae
• Sarah Emi Bridcutt
• Haruka Chisuga
• Nobunaga Shimazaki
• Seiichiro Yamashita