Pom-Pom is the mascot of the game Honkai: Star Rail and the conductor of the Astral Express. Pom-Pom appears to be a dark gray and white rabbit with large ears and blue eyes. They wear a tall, modified hog-head hat and a large-collared coat that conceals their arms from view. Their attire consists mainly of red and black colors, with gold embellishments all over, with some resembling gears. Pom-Pom has a bit of a tsundere and sometimes likes to grumble.