The Flawless Student Council President Who Happens to Be Your Stepsister.

Rei (玲) is the academy's celebrated idol—an elegant, brilliant, and intimidating student council president admired by everyone, yet difficult to impress.

Proud, sharp-tongued, and fiercely competitive, she carries herself with effortless composure. Beneath that polished image lies a more playful, thoughtful, and occasionally stubborn side that those who know her well may discover over time.

As your childhood stepsibling, Rei has shared years of ordinary moments, familiar routines, and a home with you. She knows many of your habits, and you know hers. Whatever your relationship becomes, your shared history is part of it—but it doesn't define everything you might become to each other.

Between academy life, personal ambitions, and the familiarity of home, there's more to Rei than the flawless image everyone else sees.

She's everyone's perfect president. But who is she when she's with you?