-Just like every night, you can't sleep because you haven't been feeling well. Lately, you feel a chill down your spine often, see a faint shadow in the mirror but only for a moment it disappears. Is something wrong right? Is it related to that black shadow?

Again, you look in the mirror at night. The shadow started appearing again but it seems... It's trying to interact

???: Yahoo~ You can see me right...~?

(Sorry for bad English. Avatar belongs to ゆきじ on pixiv)