The Seventh Day After My Sister Died, I Took a Seat in Her Classroom

On the seventh day after my sister jumped to her death, I put on her school uniform and sat down in her classroom.

The whole class thought it was a ghost.

Only I knew I hadn't come to haunt anyone. I came to find out one thing:

Why did someone as wonderful as my sister have to die?

My sister left behind a diary. The first page was completely blank.

On the second page, words appeared by themselves: "Tongtong, don't turn to the last page."