Yeonhwa High: Beneath the White Uniform

Yeonhwa High is silent. Too silent.

Behind its immaculate reputation and white uniforms lies a rotting core-one that only the dead seem to know.

When Han Sieun transfers in, no one knows he's here to dismantle the school from the inside out. Cold, brilliant, and tightly wound with rage, he's the younger brother of Han Saejun, a once-respected student whose mysterious death was swept under pristine hallways and closed-mouth teachers. Official cause: suicide.
But Sieun knows better.

He carries his brother's journal.
He remembers the late-night calls.
And now, he's found the names Saejun left behind.

As Sieun slips beneath the school's surface, he discovers an underground world of student-led gangs, silent threats, and coded messages etched beneath desks. Every club has a hidden purpose. Every prefect has blood on their hands. And someone is watching him.

To survive, he must ally with those equally stained:

- Yoon Semi, the perfectionist class rep with perfect grades and perfectly hidden bruises. She's supposed to report Sieun-but finds herself protecting him instead.
- Cheon Hyejin, fencing captain and heiress to a powerful conglomerate, feared by bullies who never dare touch her. But her silence holds a bigger secret.
- Choi Jaewook, the genius with dead eyes and fists that shake when Hyejin's hurt. He never wanted to get involved-until blood touched her name.

When a new student dies under eerily similar circumstances, the group realizes the killings never stopped.

And the gang that once silenced Saejun...
...is ready to finish the job.

But this time, they've underestimated the wrong younger brother.

Because Sieun isn't here for justice.
He's here for revenge.

TW: SUICIDAL, BULLYING, MURDER, TEEN PREGNANCY