サイゴノヒツギ

A strange crossword puzzle starts circulating amongst Chiri's friends, and they soon begin getting murdered one by one in horrifying ways. At night, Chiri can seemingly view their deaths in her dreams, causing her to lose sleep. Depressed and confused, she wanders into an old orphanage where she spent her childhood and uncovers a long-forgotten link to her past that may help her unravel the mysterious and tragic events occurring around her.