A princess from a land of jewelry and KiramaStones comes to Earth in search of people with a “shining spirit” called Kiramental, a source of outstanding charm and talent. She seeks them out to make them into warriors to defend Earth from an evil army. Five are chosen by the KiramaStones, which transform into sentient vehicle companions known as Mashins. Using these powers, they fight the evil army bent on robbing people of their hope and radiance.