This romantic fantasy, nourished by the deep-rooted tradition of Japanese literature, takes place on that ancient border where the spirit world and the human world intersect. The story, brought to the big screen from the light novel series written by Kureha, skillfully weaves Japan's deep admiration for its supernatural beings into a modern love story. Oni, these demonic beings that have existed for centuries as the image of fear and power in Japanese culture, appear here with a completely different face. The bond that a young woman from the human world establishes with this mystical universe forms the emotional skeleton of the film. Inspired by the rich symbolic world of traditional Japanese folklore, the atmosphere draws the viewer into another dimension, visually and emotionally. Director Chihiro Ikeda aims to establish that fragile balance that this genre requires, that moment when the fascinating and the frightening are intertwined. The character played by Ren Nagase, who comes from Perma's idol world, adds a human warmth to the supernatural weight of the story. Considering that manga and light novel adaptations have now gained a permanent place in the Japanese cinema calendar, it can be said that this film offers an interesting entry point not only for the fan base but also for viewers who are new to the genre. At the same time, the fact that an anime adaptation is on the agenda is an indication of how wide a narrative potential this universe has.