To use this Akari PJ set, simply put it on like you would any other pajamas. It's perfect for relaxing at home or sleeping. As for care, you can machine - wash it in cold water with similar colors. Avoid using harsh detergents. Hang it to dry to keep its shape. And remember, because it's a sample with a grey mark, don't be too worried about small stains as it already has its own unique character.