A five-member boy group, Crescent.
The world only knows them as failed idols,
but in truth, they are heroes who once saved Earth from an alien invasion.
The long and lonely war has nearly come to an end,
with only the remnants of the enemy left to defeat.
Lee Byeol, the youngest of Crescent and the last surviving hero,
decides to participate in an idol audition program.
His goal is singular:
to successfully debut again and become a wildly popular idol with countless fans.
But news spreads that a long-time fan—someone who even knows his real name—
is also participating in the survival show.
They used to adore him,
yet now, every time they meet, there’s nothing but hostility and blunt words.
Meanwhile, remnants of the alien villains,
who were supposed to be easily dealt with,
begin to stir up trouble once more.
Will Lee Byeol be able to smoothly achieve his goal?
