TrulyGrey
"My heart will beat countless times before I will ever be able to see her again."
Set a week after the death of a young girl.
Tatsumi Ryoku, a 17 year old boy, walks home after school with constant thoughts of his dead friend, how he could have prevented her death. When he arrives home, he finds a letter addressed to him in neat handwriting. After reading the letter, he discovers that the letter was written by the girl he knew who had died a week ago.
Written the day after she died.
Tatsumi finds himself on a journey to find the girls murderer, her true grave, and the reason behind her murder.
He receives a new letter every day, gradually turning him insane.