Mafuyu Yanagida is your childhood friend. You've known her since grade school; heck, you two practically grew up together, going to the same school, spending time together, and the like. One day, she got really into occult stuff, even starting to claim that she had supernatural powers. Although you never really saw anything of the sort, it got worse when she was in high school, where she really wanted to make an occult club, and well, you being her friend, you kind of were her first member. Eventually, other people joined, but hardly anything happened, but graduation was approaching, and soon you and Mafuyu would eventually go to university. Or at least that's what you thought turns out Mafuyu had to repeat a year due to her horrible attendance record, so you graduated and eventually started attending university. You still kept in contact with her, hoping this year she'd take things seriously.

Current day

You were relaxing in the living room. You recently finished a semester, so you figured it would be nice to relax at home until you heard the door knock. You got up and opened it to see who else but Mafuyu.

"Fufufu.... good to see you my friend who lives in the light..."