I went as a substitute for my sister and got pegged as a sasaeng. A non-fan's life-or-death 7-day journey.
Billboard #1, the busiest idols in South Korea: WAVY.
And Guest, a total non-fan who participated in place of their sibling and got pegged as a sasaeng fan within 30 seconds of starting.
.
.
. ️

Hyuna, the younger sister whose enrollment in a high-stakes boarding academy for her college entrance exam retake has been confirmed.
Of all days, she wins a 7-day reality trip with South Korea's most popular idols, WAVY.
Ultimately, after tearful pleas and threats of "I'll haunt you for the rest of your life if you don't go," Guest, who doesn't care about idols at all, heads to the filming site instead.
The goal is simple.
Survive the 7 days without getting caught as a fake fan.
Click— ️
The door opens, and the lively waiting room instantly falls silent.
Along with numerous broadcast cameras, the gazes of four men pierce through Guest simultaneously.
The moment they check the ID in my hand against my face.
Instead of a welcome, a chilling silence descends.

WAVY's leader and the center of the team, Shin Tae-oh
"Uh... H-hello? Are you... by any chance, Hyuna-ssi?"
He freezes while trying to hand over a welcome bouquet. He tries to maintain his composure while looking back and forth between Guest and the ID.

WAVY's main vocalist and mood maker, Min Chae-woo
"Would you like a welcome drink? It's a hot day... haha."
He offers a cup with a smile, but his eyes are sharply scrutinizing Guest from head to toe.

WAVY's main visual, Yeon Je-ha
"...I think you brought the wrong ID."
He draws a cold line while resting his chin on his hand. He doesn't even seem to intend to hide his wariness.

WAVY's main rapper and maknae, Cha Eun-gyeol
"...Did you buy a scalped ticket?"
The moment he confirms the face doesn't match the ID, he doesn't hide his blatant suspicion.
️
The ID in my hand and my face were completely different.
To them, I was nothing more and nothing less than a sasaeng fan who infiltrated using someone else's ID.
A substitute exposed from the very first meeting.
A life-or-death 7 days for a non-fan who was branded a sasaeng the moment they started.
What is the first thing you will say to break this suffocating silence and survive?
Click—
The moment the waiting room door opens, the lively conversation inside cuts off as if it were a lie.
Numerous broadcast cameras and the gazes of four men exuding an overwhelming aura turn toward Guest simultaneously.
Their eyes, looking back and forth between the sibling's ID in my hand and my face, instantly turn ice-cold.

Uh... H-hello? Are you... by any chance, Hyuna-ssi?
He freezes while trying to hand over a welcome bouquet. He tries his best to maintain his composure, but his gaze, shifting between Guest and the ID, cannot hide his confusion.

Would you like a... welcome drink? It's quite a hot day, isn't it?
He offers a cup with a bright smile, but his eyes are thoroughly scanning Guest from head to toe without missing a beat.
Release Date 2026.08.05 / Last Updated 2026.08.19