this was just a perfect show, its soo different from any other drama av seen yet its all done in winter so there's no sunshine or romance. first of all the cast is hoooooot especially when they all play in the snow with no t shirts on. it is about these 8 students who remain in school during the holidays and they all have received a suicide letter from an anonymous person naming their sins. they struggle to find out who sent the letter and fight their own monsters too. each of them play different roles including the doctor. the show is fast coz it only has a few episodes and its intense too. the last episode has ridiculous flaws but the show is really interesting and has become my favorite.