Genur.art

obs_rune_chamber, visual novel background, enormous circular charcoal-black basalt ritual chamber, high twelve-ribbed stone dome, eight pointed blind arches, central three-step circular dais, one glossy rectangular obsidian altar aligned east-west, glowing violet runes, restrained dark violet energy, concentric polished stone floor rings, fixed purple magic spheres on east and west walls, dark fantasy anime style, no people, centered wide west-side camera looking east, three of the six fixed spheres visible on the opposite wall, other three behind camera