Using your Giyu Tomioka Nichirin Sword replica is easy. Just switch between the Demon Slayer Mode and Water Breathing mode to add some fun. When not in use, you can put it in the scabbard or display it on the dedicated stand. For maintenance, keep it away from water and direct sunlight to avoid damage. Also, handle it gently to prevent any scratches. Enjoy your amazing Demon Slayer collectible!