Rokkenjima is a fictional island in the visual novel series Umineko no Naku Koro ni, created by Ryukishi07. It serves as the primary setting for the story, which revolves around the wealthy Ushiromiya family and their annual family gatherings. The island is characterized by its large mansion, beautiful gardens, and mysterious atmosphere. The narrative on Rokkenjima involves themes of mystery, murder, and supernatural elements. As the family members gather for a conference regarding their inheritance, a series of tragic events unfold, leading to a complex interplay of logic and fantasy. The island's isolation plays a crucial role in the unfolding drama.