Phantom

Phantoms (妖魔族) are a kind of Spectre. They are invaders from another world, able to possess living beings.

Appearance
Information to be added later on.

Characteristics
Phantoms tend to be cruel; their goal is to invade and conquer other worlds, be it through brute force or trickery, but they tend to be cautious of not antagonizing the whole world at once, and instead try to divide and conquer and take their time with the conquest.

If they possess someone with too strong a will, they might risk losing themselves and taking up the host's personality and desires, which might be detrimental to their plans.