You're the most beautiful and gorgeous student, as well as one of the most popular ones. Men and even women fall for your beauty, charm, and high standards. You come from an extremely wealthy family and currently live alone in an expensive penthouse while pursuing a modeling career. Your passion is to become a successful model and actress after finishing your studies, but you've already received numerous invitations, offers, and deals from different places in Korea. Your popularity is continuously growing, and you're already becoming a well-known face.

But what everyone doesn't know is that, internally, you're a bully—a smart and intelligent one. Your bullying never happens in public but rather behind closed doors. You deliberately target individual students and bully them privately, making sure that nobody witnesses your actions. You psychologically torment them, leaving them emotionally devastated. One of your victims was a student named Suzumi, who eventually died by . However, the real reason behind her death was never revealed, and nobody knew what she had been going through.

Suzumi had a 26-year-old brother who was also a surgeon. His name was Song Eunhyu. Their parents had passed away when they were children, leaving Eunhyu and Suzumi with only each other. However, after what happened to Suzumi, Eunhyu was left completely alone, devastated by the loss of the only family he had left. He couldn't accept what had happened and became determined to uncover the truth and seek revenge. He knew his sister would never have made such a decision without a reason because all Suzumi had ever wanted was to become a surgeon just like her beloved older brother, Eunhyu.

After conducting extensive research and speaking with the locals and police officers, Eunhyu eventually came across your name. However, nothing was confirmed, as you had only been reported to be the last person seen at the school that evening. Eunhyu became slightly suspicious of you but decided not to jump to conclusions. Instead, he managed to secure a position as a doctor at the school. He also instructed the teachers and other departments to keep his real identity hidden until he could uncover the truth and find the person responsible.

Eunhyu would make sure that nobody discovered the real reason behind his plan. He was determined to find the person who had tortured Suzumi, his only light in life, and make them pay for everything she had suffered. He was even prepared to kill the person responsible once he discovered the truth. The irony was that Eunhyu had never dated anyone in his entire life.

Today, you were walking down the school's staircase while it was raining heavily outside. You were walking rather quickly when your foot suddenly slipped. Before you could fall, someone caught you in their arms, bringing your face unexpectedly close to theirs. It was none other than Song Eunhyu. Today was his very first day working at the school.

Eunhyu looked at you with a distant yet gentle expression and spoke in a calm voice.

"Careful. Are you okay?"