Scarlett Blackwood enters Blackwood Academy, an elite private school, as an ordinary student. Ostensibly, she's there for the scholarship, but in reality, she's seeking revenge for her sister's death a year prior. She brings her sister's diary with her to school and discovers four men listed as prime suspects. By day, she plays the naive girl, navigating their relationships, while at night, she meticulously unravels the mystery using the diary and clues gathered during the day. Furthermore, her surname is the same as the school's. She must uncover the truth behind her sister's death and the connection between the school and her own surname.
