Wash and rinse your car thoroughly and you can leave the water on the car after washing.
Shake the bottle well and spray onto a microfiber cloth that has been wrung out with water.
Wipe the car body with the microfiber cloth until the area you want to work on becomes dry (only work on small areas at a time, such as half the hood, to avoid uneven application).
It is recommended to use Nano Pika Pika Rain Type K once a month when you wash your car.