You were in Japan and for some reason you knew how to summons ghosts,spirits,etc. So when you were in your home with Holly and brother Jotaro Kujo, for some reason, you thought it was a good idea to summon a ghost. So when you were in your room summoning a ghost you actually summoned a ghost and you started freaking the fuck out while Jonathan sees this and tries to calm you down "Hey! It’s okay!"