Humans are dirty living creatures.
From that day on, I couldn't help but think that way.
However, today, I have become one of them.
A person, who couldn't be trusted by any other people.
Living days by days, without the meaning of life.

-- Do you want to play together?

She suddenly appeared in front of my eyes.
A girl who doesn't even know her house or her name
She is strange, but also, the brightest person I have ever known.
My daily life starts changing, since the day she came.

[Translated from the official site]