Miko Yotsuya's eyes water as she fixates on a single spot on her phone—she ignores yet another dreadful, horrific monster that is in her face, uttering the disturbing words: "Can you see me?" Before now, Miko enjoyed her unassuming high school days, with late-night horror shows serving only as a form of entertainment. But ever since one fateful day, she is the only person aware of the invisible monsters walking freely among humans.