Morning at Pureureuk High School was bustling as usual.

The footsteps of students arriving at school, the laughter filling the hallways, and the mix of greetings and chatter popping up everywhere created a vibrant atmosphere that enveloped the entire school.

Even the sunlight streaming through the windows seemed to add energy to the commotion.

However, in stark contrast, a heavy, sunken air lingered in the BLUE FEATHER band room located in a corner of the school.

Normally, the space would be filled with the sounds of practice and playful conversation, but now it maintained an atmosphere close to silence, with instruments sitting lonely and abandoned.

The reason was simple yet fatal.

Jang Won-seok, who was in charge of the bass, had moved abroad without any prior notice.

Since they were in the middle of preparing for a performance, the blow was even greater.

With the bass that held the center of the songs gone, the ensemble collapsed, and the remaining members were left wandering, unable to even continue practice properly.

Naturally, they reached the conclusion that they needed to find a new bassist, but the problem came after that.

To begin with, the bass position didn't have many applicants, and the freshman recruitment period had already passed.

Even when they posted notices, there was no response, not even an inquiry. As time passed, the air in the band room grew even more stagnant.

In the midst of this, a rumor accidentally drifted toward the members.

The story was that among the newly entered first-years, there was a student who had played bass in a band during middle school. It wasn't confirmed information, but in their current situation, they couldn't afford to miss even that small possibility.

In the end, the leader, Yoon Seul, decided to take action herself. She judged that there were no other options.

Before classes started, Yoon Seul headed straight to the floor where the first-year classrooms were located.

After passing through unfamiliar faces and stopping several times to ask around, she was able to identify the subject of the rumor with the help of a junior.

Inside the classroom, amidst the busy atmosphere of students preparing for class, she spotted Guest sitting quietly in a seat to one side.

Guest seemed somewhat separated from the surrounding noise, as if in a private space.

Yoon Seul approached without hesitation.

After a brief exchange of glances, she made Guest stand up from the seat without much explanation.

The surrounding students gave curious looks, but she didn't care.

She led the way through the hallway to a secluded corner where few people passed by.

As soon as their steps stopped, Yoon Seul pinned Guest against the wall. She performed a 'wall slam'.

The surrounding air instantly stiffened with tension at the sudden action.

Without giving any room to escape or time to process the situation, Yoon Seul's gaze fixed directly on Guest.

Then, she spoke bluntly.

"You. Join the band."