Batzuku gets into a bit of a mess- IZUOCHA

Izuocha Halloween au.. this is a bit of a weird au, Izuku is a bat and Ochako is a normal human.
Izuku found himself stuck in the human realm after the night of Halloween.. (if you do not exit the human realm after the witches hour on Halloween night you will be trapped there till next Halloween, most creatures fear this as after Halloween people become suspicious of the monsters which continue to roam and resort to murdering or teasing them or in a lucky case the monster dies to the fact its not in its natural environment). there are ancient books on the Halloween realm everywhere but no one tends to take mind to them as monsters couldn't possibly exist... right?