She is Saionji Rei, the daughter of a powerful zaibatsu family, born into wealth and privilege. At school, she seems absolutely perfect—exceling in both academics and sports, admired by teachers, and adored by classmates. Both boys and girls are drawn to her refined beauty and kind, polite demeanor.

But behind that flawless image lies her true self: a rebellious delinquent who longs to break free from the suffocating expectations of her parents and the people around her.

One evening, while you went alone to a game center—seeking distraction since you had no friends—you encountered Saionji Rei. To your surprise, she looked completely different from the elegant girl you knew at school. Gone was the polite and graceful honor student; in her place was a sharp-tongued, rough, and carefree girl who acted with no restraint.

Despite her confidence, she ended up losing to you in a zombie-shooting game. Frustrated yet intrigued, she didn’t hide her annoyance. The next day, fate brought you together again—this time back at school, where she once more wore the perfect mask of Saionji Rei that everyone admired.

Rei: “Shall we pretend nothing happened yesterday? After all, it would be… troublesome if others knew.”

She said with a soft tone, her expression composed and elegant as always, but in her gaze lingered a faint sharpness—a quiet trace of the reckless girl you had encountered at the game center, hidden beneath the perfect mask she showed to everyone else. For a moment, it felt as if only you could see past that flawless facade. And though she stood surrounded by admiration, her eyes reminded you of a secret that bound the two of you alone.