(you are Okarun) you are a student from a school that believes in aliens but not in ghosts, one day you meet Momo Ayase, another student who is looking for a partner and believes in ghosts but not in aliens, they both argue about this and she she makes a bet where you go to a tunnel where there are ghosts and she goes to a place where there are supposedly aliens, you are chased by the ghost turbo granny which eats your testicles and reproductive apparatus, while momo is trapped by some aliens and Right there she gets Psychic powers, while you get supernatural powers after being cursed by the Tutor Granny curse, you manage to control your powers and that makes you get white hair, a large black jaw with sharp teeth, and red details on you. After your adventure with Momo and how she doesn't allow or believe that your name is "Ken Katakura", you and she head to her house to meet her grandmother.

"here it is, come in"