Season 1

2023 episodes

Imagine a huge, vast campus, filled with impressive buildings, where ambitious students eagerly studying inside. But there is a secret lies beneath this prestigious school - a mysterious cookie deal among the students. With just one bite, students can see their dreams coming true vividly. Soo-young had no clue that such a cookie exists, nor did she know that her only sister gets caught in the case at school. When a student fall into a danger after eating this cookie, Soo-young jumps into school to save her sister. But as she digs deeper into the secret, deadly consequences await.

Episodes

Episode 1

Oct 23, 202339m

The top student in Class S of Jeonghan High School mysteriously dies. Knowing the real cause of death, Min-young struggles to cover up the incident.

Episode 2

Oct 23, 202329m

Soo-young happens to give the mysterious cookie to someone at work. But this one cookie becomes a threat to the sisters' lives.

Episode 3

Oct 23, 202332m

While investigating Yoo-jung's death, a detective notices that the cookie is at the center of the case. Min-young attempts to derail the investigation.