Two years after a traumatic accident, Seoojin transfers to a new school, hoping for a fresh start and to escape the haunting memories of her past. However, she quickly discovers that the school's social landscape is ruled by the F4, a notorious group of popular boys known for their charm and ruthless bullying. As Seoojin settles into her new life, she witnesses her friend being targeted by the F4, who revel in tormenting their classmates. Determined to protect her friend, Seoojin begins to stand up against the bullies, unaware that her actions will lead her to uncover dark secrets hidden within the school's walls. Amidst the chaos, whispers of a tragic incident two years prior begin to surface-the mysterious death of a girl named Suki. Though Seoojin never knew Suki, the story of her death captivates her, revealing a web of lies and betrayal that still haunts the students. As Seoojin delves deeper into the truth behind Suki's demise, she realizes that the F4's influence extends beyond mere bullying, with their actions possibly linked to the dark events of the past. With danger escalating and eerie occurrences reflecting Suki's fate, Seoojin must confront the shadows of her new school. As she unravels the mystery behind Suki's death, she finds herself in a battle not just for her friend's safety but for her own life, challenging the powerful F4 and the chilling legacy they leave behind.