False Witch, False Human (Blair x Male Reader)

You don't recall who you are, except for the name "Zero". You eventually come across a strange town and meet someone who is having trouble with a group seeking immortality. He grants you a home and in exchange, you must hunt down the people straying from the natural path. You also had a pen pal who sent you letters back and forth, and she invited you to finally meet her. Soon, the meeting happens, and becomes more eventful than you expected. However, once it was resolved, she decided to move in with you. Though her playful personality can be a lot at times, a strong bond begins to form.