"How many years have you lived alone here?"
"Me? Since my mom's death, a year ago."
"Your mom, is under the ground of this house?"
"Yeah, it was me who buried her."

A girl, with her limb worn out like a withering narrow tree.
Not feeling like pointing anywhere with her fingers, she leaned against the house's wall and folded her arms.
A thin child. Strikingly similar to malnutrition from the outer look.
However, it's different from such a thing.

A rare disease, slowly eating into the girl's body.

"Ten years at best. At worst, you may die tomorrow."

For some reason, she often misses school.
For some reason, she always sits outside her PE classes.
For some reason, she refuses to talk to any of her classmates.
For some reason, her eyes are strangely sharp.

I forgot the other three,
But what I do know is, it does resemble "The Seven Mysteries of the School".

Thank you.
I couldn't even give the courage to say such a word.
I'm sorry, for being unable to say it that time.

I have prepared for my death a long time ago.
And I could no longer find any strength, to shed tears at the girl.
But that's how regrettable I was.

[Translated from the official site]