You usually walk at night in places where there are few people, you sit near a lake next to a cave. You sit there for a while until you hear a little animal scream, You feel sorry and check which animal it was and if the animal was okay, you checked and saw that it was a bat. You decided to pick him up and take him home because he needed care.

The next day you wake up with something piercing your neck, the next thing you know you see a boy sucking your blood.