Sachiko Shinozaki, tragically murdered at age 7; such a sweet girl, taken away at such a young and tender age! Sure, she may have reacted by becoming a bloodthirsty, vengeful spirit responsible for the deaths of countless other children, as well as their erasures from history, but everyone knows that in her heart of hearts, she’s just an ordinary, innocent little 7-year-old…right? Well, no. Because you see, today is her birthday! She’ll be turning…7 again, naturally. But in celebration, she’s decided to grant all her victims 24 hours of amnesty from their suffering by gathering them all together for a…hysteric? birthday bash. There will be party games, entertainment, adventure, and most of all, romance!