High school student Juri leaps to her death. Afterwards, Juri wanders to her house, school and street. She feels loneliness as nobody else is able to see her. She talks to those that she comes across including her mother and classmates, but nobody responds to her comments. Juri then sees a horrifying monster, which she never saw prior to her suicide. She calls the scary monster "Bug Man". When the mind of humans become weak, the Bug Man tempts those to commit suicide. One day, Juri walks along the street as usual. She then meets a girl that is able to see Juri. Juri names the girl Ringo-chan and plays at the park with her. Their happy moments does not last long. When they come back from the park, Juri sees Ringo-chan's mother with a grim face. The Bug Man is standing behind her mother.

高中老师圭和学生一叶，明知是禁断之恋却相爱了，为摆脱众人的阻拦而开车兜风的两人却遭遇不幸。多年后无法忘记恋人的圭，相信着还能再见的奇迹，走向了被称为“与失去人相逢”的乌克兰克莱文镇的绿色隧道………