Seven thrill-seeking young people live in a Russian-style mansion on a small island. Immediately afterwards, strange things happened one after another. Besides them, there were other things living in the mansion. Later they found a diary with a black shell, and relied on this diary to escape from various strange things and dangers again and again. But it seemed that greater misfortune befell them again and again, and seven people died one by one. A pair of eyes in a forgotten corner is always staring at them. Why can the black leather diary help them escape the pursuit of ghosts? Why did the seven people die one by one? What's in the big house? If you want to know these questions, please read "Anji's Diary".