After leaving the city where he grew up, Mark settled in the little place called Sullen Town. Now he is living in one of the streets of this town in the house number 137. He goes to college, sometimes he sits on the roof of his house, he reads articles and blogs on the websites while he was in apartment. He just live, he wants to change something in his life. Three years have gone, until that thirteen days comes, which would be described further...
• updated english localization (Thanks Bill Domanski)