Mitsuki Kimijima

機械オタクのまりお（尾上寛之）は他人に心を開けず、恋愛はとりわけ苦手だった。そして、まりおには唯一の親友である幸太郎（山口大地）にも言えない性癖があった。それは、ストーカー行為をしていること。ひそかに思いを寄せる同僚の杏奈（齊藤英里）の家に忍び込み、下着を盗んだり自慰をしたりしていた。ある日、まりおが杏奈の部屋に侵入すると、パソコンにメッセージが映し出される。

They took a bad turn when they took the short cut to their house. Their car broke down and they can't escape the death forest.

Uchida Mayu is a high school student in a peaceful town near Tokyo. She suffers from violence from her stepfather and plans to run away to her uncle's home in Tokyo. As she is about to board the last bus to Tokyo, a terrible looking old person causes her to miss the bus. She attempts to walk across a ridge. Meanwhile, Mayu's uncle Uchida Kazuki is a freelancer writer. He chases after the hideous monster Yoshie who attacks people. Kazuki receives a phone call that his niece Mayu ran away. He begins a search for her and finds her cellphone on a mountain path. He sees Yoshie's picture on her cellphone.