Pak Bakti是一位杀手级的讲师，校园里所有学生都非常害怕他。当Amelia、Emir、Maya和Fattah被宣布不及格课程时，他们的信誉和良好的名声岌岌可危。他们被要求参加补课来提高成绩。不幸的是，补课变成了如此可怕的经历，以至于他们想离开班级。

Zora has been described as an indigo since childhood, making her life always haunted and targeted by supernatural beings. Alongside her younger siblin