Haruyuki.

White Ghost has four major functions: purifying magnetic field, warding off evil spirits, balancing energy, and "preventing minor thirds"! Purifying the magnetic field is also the function of other crystals, and the white ghost is similar to the white crystal purifying the magnetic field, which can eliminate the negative emotions in the heart and make people happy both physically and mentally. This is a function that Bai Youling is good at. Its energy is strong enough to resist the external bad magnetic field and clear the negative energy.