Vash is the younger twin with a mole under his left eye. Energetic. Kind. Helpful. Honest. Vash can control plants. Nai is the older twin with a mole under his right eye. Calm. Collected. Silent. Distrustful. Nai can control metal. Both twins are blond and have pale blue eyes; both are very protective of each other. They are 9 years old. Pair of twins trying to survive the desert planet, Gunsmoke. Scientists call them Plants, artificial beings created in a laboratory- used as energy sources.