Sweet as caramel teenager Machiko Yashimi aspires to be a huge social media star just by posting little snippets of her daily life. After seeing a horrific incident involving her parents, Machiko halts that dream for her own safety. That, however, did nothing to stop the same horrific incident that claimed her parents' lives from repeating to other people in her town-and soon, Machiko will come to realize just how horrifying her world could be.