Blue Noise

AETHER was supposed to last forever.

Four members. Four dreams. One stage.

Seo Jiwon, Han Taeyul, Kang Minseo, and Yoon Hajin spend years training for the moment they can finally stand together beneath the same lights. When AETHER debuts, they become more than a group. They become a family, sharing sleepless nights, late-night drives, first victories, unfinished songs, and memories they believe will last forever.

Jiwon is the dependable leader, carrying the group's weight without asking for help. Taeyul is the charming center whose voice makes thousands of fans feel understood. Minseo is the quiet emotional support, connecting with fans through music and kindness. Hajin is the main dancer who works harder than anyone because she secretly believes she is the least deserving member.

To Gravity, AETHER is perfect.

But behind the cameras, cracks begin to appear.

Taeyul's private relationships with fans become a scandal. Minseo's kindness is twisted into a disturbing accusation. Jiwon becomes consumed by his responsibility to protect the group, while Hajin struggles to understand where she belongs among them.

Then Jiwon-the member everyone trusts most-is accused of misusing money from a disaster-relief fundraiser.

Rumors spread. The agency responds. Trust begins to disappear. AETHER does not collapse in one dramatic moment; it breaks slowly, through silence, unanswered messages, empty chairs, and songs that no longer feel like theirs.

Losing AETHER means losing more than a career for Hajin. She has spent years building her identity around the group, believing she must work harder to deserve her place.

When the stage finally goes dark, she is left with one question:

Who is Yoon Hajin without AETHER?

BLUE NOISE is a psychological drama about fame, friendship, identity, and the fragile people hidden behind perfect idol images. It is about four people who believed they would reach the future together, until they could no longer find their way back.