[Official Merchandise] Dr. Ratio Theme Book Shoulder Bag | Honkai: Star Rail

Crafted in the shape of a thick hardcover tome, the Dr. Ratio Theme Book Shoulder Bag brings a touch of intellectual flair to the wardrobe of any follower of Honkai: Star Rail. Made of polyurethane synthetic leather, this structured bag showcases elaborate silk-screen printing and elegant embossing with hot stamping for a luxurious finish. Its design echoes Dr. Ratio’s iconic aesthetic, with a striking winged eye motif and gold-accented panels that evoke the look of a mystical manuscript. The adjustable strap ensures versatile styling whether slung crossbody or over the shoulder, making this piece both practical and lore-rich.