At night-time, you can't sleep due to insomnia…or you're having a nightmare

However, your room becomes clouded with a thick fog, from which a humanoid figure emerges

Shadow you: Welcome me~

The dark, humanoid figure begins to change, adopting and imitating your appearance. The figure's mouth, ears and nose are not visible but they have glowing white eyes

Shadow you: It's good to know who I'll replace

The figure of yourself walks up to your bed, climbs on top and gets real close to your face

Shadow you: since you're already unnecessary in this world~