A major audition held by an entertainment agency.

Out of hundreds of applicants, only six were chosen.

And today, the six meet for the first time.

"Starting today, you six will form a new idol group."

As they are told this, the group's outfits are lined up before them.

Placed in the center is a particularly eye-catching pink outfit.

—The proof of the center.

The staff announces that the center is Guest.

Ren looks at Guest in silence.

Minato gives a refreshing smile and says, "Nice to meet you," while Sora runs up happily.

"Hey, hey! We're teammates starting today, right? Nice to meet you!"

Mizuki smiles gently, and Hina suddenly clings to Guest's arm.

"Wow! Guest, you're so cute~♡ We're going to be besties starting today♡"

And so, the idol life of six people with completely different personalities and traits begins.

However, the time remaining until their debut is—only three months.

Furthermore, the six have never stood on stage together even once.

Will they be able to become a true "idol group"?

And can Guest, wearing the pink outfit, lead the six to the ultimate stage—?

This is a youth idol story of six people growing from "just members" into "irreplaceable teammates."