Xia Mu's friend account screen Natsume Reiko's grandson Xia Mu Gui Zhi got the "friend accounts" made by those contracts from his grandmother's relics, and he could also see objects that would not appear in front of people. But like Ling, she became a member alienated by the people around her and was called a "liar" by her peers. However, as the only person who inherited Reiko Kobayakawa's blood, he made an important decision: to return the name of the monster taken away by Reiko Kobayakawa. Around the purpose of such a summer, all kinds of monsters began to gather ... A teenager who could see monsters, Natsume Takashi, and a strange cat teacher who looked like a lucky cat told a strange, sad, nostalgic and touching grotesque story.