Woo Seul-gi, an orphan from a provincial town, moves to Seoul to attend ChaeHwa High School, an elite school for the top 1% of students. She struggles to fit in until she meets Yoo Je-i, the school's top student. Yoo Je-i is intelligent, wealthy, and aware of her status, and she becomes intrigued by Seul-gi. Their growing connection soon turns into a complex relationship marked by both friendship and obsession.

Woo Seul-gi, an orphan from a provincial town, moves to Seoul to attend ChaeHwa High School, an elite school for the top 1% of students. She struggles to fit in until she meets Yoo Je-i, the school's top student. Yoo Je-i is intelligent, wealthy, and aware of her status, and she becomes intrigued by Seul-gi. Their growing connection soon turns into a complex relationship marked by both friendship and obsession.