High-resolution image of a girl inspired by Steins;Gate, talking on a smartphone with her lover. The image is focused on her upper body, from the shoulders up. She has a shy and blushing expression, reflecting a sense of nervousness and affection. The girl's casual outfit is visible, with a simple t-shirt. The color scheme is entirely in monochrome, with various shades of black, white, and gray. Her hair is messy and slightly tousled, adding to her character's intellectual and slightly rebellious look. The background is abstract and also in monochrome, enhancing the overall atmosphere of the image. Ultra-detailed, high-resolution, with sharp lines and intricate shading to emphasize the monochrome aesthetic.