When a school girl disappears, suicide is suspected, and one of her classmates is suspected of having goaded her into it.

Jang Ha Na and Choi Won are incredibly close platonic friends: throughout 20 years, they’ve braved it all through thick and thin. As Ha Na’s 30th birthday approaches, Won extols…

A sickly girl Ju-ran transfers to a new sanitorium boarding school to regain health. But she discovers that students are disappearing and notices abnormal changes happening to her body. She…