character: firefly_(honkai:_star_rail), A medium shot from a side angle depicts firefly_(honkai:_star_rail) sitting in a plush passenger seat inside the Astral Express train. She has long grey hair with a black hairband and purple eyes, wearing a white long-sleeved shirt under a black jacket and a matching skirt. She is holding a small bento box with both hands, delicately eating with chopsticks while looking toward the window with a peaceful expression. Beside her on the seat is a small drink. Through the large train window, a vast, shimmering cosmic vista of deep space, nebulae, and distant stars is visible. The scene features a soft, painterly anime style with visible brush textures and layered color blocks, utilizing loose, sketch-like linework. A cool teal-blue atmosphere permeates the cabin, contrasting with warm golden highlights reflecting off the interior surfaces, creating a serene and contemplative mood.
