너만 모르는 진실

"내가 이 아이들을 제대로 알고 있을까. 타인을 완전히 안다는 것이 가능한 일일까."

"아무리 멀쩡한 얼굴을 하고 있어도 속으로 무슨 생각을 하는지는 아무도 모르는 거잖아요."

A student at a prestigious catholic school kills herself in the school grounds. 7 months later some students at the school receive letters from the dead girl blaming them for her death, but is everything in the letters true?

This was a solid YA with a mystery element to it. Obviously thematically very similar to 죽이고 싶은 아이 but I would say this is a little easier since it doesn't have as much transcribed spoken speech.

Having said that it wasn't so simple as to be boring or bad writing. There were lots of interesting phrases I picked up on along the way and the writing was without filler so it kept me enagaged to the end.