Hye-in, a student of Seonwoo Girls' High School, works as a part-timer to make ends meet. One day, she gets a tutoring job for a wealthy middle schooler who wants to go to Cheongdam International High…

Hye-in starts posting more pictures taken with Na-yeon's expensive stuff. She goes overboard and even tries on Cheongdam High's uniform. Na-yeon catches her in the uniform and finds the pictures Hye-i…

Na-yeon's family makes complaints to Hye-in's school about her forgery and fraud. Hye-in is on the verge of getting expelled, so she meets the school director of Cheongdam High and begs for mercy. The…

Hye-in is offered a place in Cheongdam International High School in return for keeping silent about the incident she witnessed. She buys a new pair of shoes for her new school but accidentally loses t…

Hye-in forcefully takes the designer shoes off of Je-na and hurts her without knowing who she is. Je-na is determined to make Hye-in's life miserable at school. Do-eon sees Hye-in's application for en…

Do-eon asks Hye-in to tell him what happened on the night Hae-in fell from the rooftop. But Hye-in sets a condition in exchange for telling the truth. Hye-in gets invited to the sorority party, an exc…

Je-na teaches Hye-in a lesson by ruining her dress and humiliating her at the party. After finding out what happened to Hye-in, Do-eon warns Je-na to stop bullying her. But Je-na pushes Hye-in further…

Si-eun tells Hye-in about Lee Duk-min who lends money to the kids in urgent need of money. Hye-in ends up borrowing money from Duk-min without knowing the consequences it could bring. Meanwhile, Do-eo…

Je-na confronts Si-eun, telling her to leave Hye-in alone, but Si-eun backs her off with the story of her brother. Hye-in is shocked to find out what Si-eun wanted in the first place, but she doesn't …

So-mang catches Si-eun and Hye-in in the secluded restroom. After hearing how Si-eun blackmailed Hye-in, he promises to help her. On the day of Yul-hee and Woo-jin's anniversary, the ugly truth gets r…

After Oh Si Eun's death, Kim Hye In becomes the prime suspect in the murder investigation. At school, her classmates harass her with scorn, labeling her an 'Equal Opportunity loser.' Realizing that sh…

Je Na goes through daily distress caused by her family. Her father is on the verge of divorce, and Cha Jin Uk, a suitor with a contract marriage in mind, suddenly enters the picture. Meanwhile, facing…

With Je Na’s help, Hye In makes it into Diamond 6 and decides to act accordingly. Meanwhile, Hae In regains consciousness in the hospital and returns to Cheongdam International High School, but she ap…

Amidst being mistreated and looked down upon for her memory loss, Hae In seems to make up her mind and asks Do Eon to take her as his partner to the party. Meanwhile, Je Na joins the party and reveals…

As relationships twist and allegiances shift, Yul Hui begins reaching out to Je Na’s enemies, determined to bring her down. On Je Na’s side, her once dismissive attitude toward Jin Uk begins to soften…

Hye In interrogates Sa Rang about whether he is actually Black Dog. Ultimately, Sa Rang confesses the truth regarding Oh Si Eun’s cellphone. After hearing Sa Rang’s account, Hye In is convinced that t…

Framed in a drug scandal orchestrated by Yul Hui, Je Na’s downfall seems imminent, until her allies step in. Meanwhile, Hye In follows a clue tied to a wrist injury and begins to suspect who holds Si …

Tensions escalate as Hye In is forced into submission, becoming Yul Hui's pawn. However, Yul Hui's schemes unravel when her role in a setup against Je Na is exposed, putting her in a desperate positio…

After Hae In's death, the fragile balance between the characters starts to collapse. Yul Hui pressures Hye In to expose Je Na with a lie during her engagement ceremony with Jin Uk, using a video as le…

Despite the risk of revealing herself, Hye In bravely exposes Yul Hui and the web of corruption festering within the school during Je Na's wedding. As her meticulous plan sets off a chain reaction, bu…