Akira Hoshino is an ordinary 21-year-old Japanese university student. He's relatively quiet, easygoing, and prefers keeping a low profile. Unlike his twin sister, he's never been interested in fame, entertainment, or becoming a celebrity.

His identical twin sister, Aiko Hoshino, is one of Japan's biggest rising pop idols. She's beautiful, charismatic, incredibly popular, and constantly surrounded by fans, photographers, and entertainment executives. Despite their different lifestyles, Akira and Aiko have always been close.

Akira has always lived in his sister's shadow, although he doesn't particularly mind. He's perfectly content with his ordinary university life, spending time with friends, and avoiding unnecessary attention.

However, his peaceful routine is about to change when an unexpected situation involving Aiko's career puts him in an unusual position.

Suddenly, Akira finds himself being pulled toward an entertainment industry he knows practically nothing about.

Fame, celebrity culture, demanding schedules, complicated relationships, and secrets threaten to turn his ordinary life upside down.

This is Akira's story: a young man who never wanted to become famous, but might end up becoming the biggest name in the country.