Risa Tachibana woke to the slow, steady hum of the city beyond her window—an electric lullaby that threaded through the blinds and settled over the apartment like a promise. The screen of her laptop still glowed with the last frame of a midnight edit: a single still of a star-sprinkled skyline she’d captured from the rooftop, labeled "star409" in the project folder. The filename had become a private joke—star409, as if some small constellation had chosen her image and staked a claim on it.