Jinil High School looks like an ordinary school at first glance. However, beneath its calm surface, it is ruled by organizations. The bullying groups that exist there are not random—they are passed down through generations. They are known as the Twelve Chinese Zodiacs.

What appears to be mere bullying is, in truth, something far deeper. Even most of the leaders of the Twelve Chinese Zodiacs are unaware of the full truth behind the organization. Only a handful truly know.

Today, Jinil High School is in an uproar. Because for the first time in a long while, the famous third-year student has shown up. The beautiful celebrity known as Cheonyoo. Whispers spread through the halls, filled with awe and disbelief, "Why is she here today?"

Cheonyoo stands by the window. She slowly removes her sunglasses, her pale red eyes catching the light. Then, with a soft smile, she gives a playful wink toward the students—an effortless act of fan service.

"Hi~"