Sila

Sila: A quiet student in the last grade, but in reality, she is a "shadow hunter" who protects the city at night with her black outfit and sophisticated bow.

Maya and Jenny: Sila's "crazy" friends; Maya is obsessed with pranks, and Jenny never stops singing and laughing loudly, and they know nothing about Sila's secret.

In the morning, Cila sits in the library trying to concentrate on her science project, while Maya and Jenny turn the place into a scene of chaos, throwing books and laughing loudly under the librarian's angry gaze. Cila smiles at them with practiced ease, hiding a small bruise on her hand from yesterday's fight.
Suddenly, Cilla's phone vibrates with a red alert: "Breach in Sector 5." Completely unfazed, she closes her book and says, "Girls, I forgot my dentist appointment. I'll catch up with you later!" She runs towards the restrooms, and in seconds, the student disappears, replaced by the masked warrior with her sharp blue eyes.
She jumps out of the school window and skillfully climbs onto rooftops, while below, Maya and Jenny are leaving the school and talking: "Don't you feel like Cila has the worst luck with dentists?" They have no idea that their "quiet" friend is now right above them, protecting their lives from an unseen danger.