While reading alien books in class like usual you were getting paper balls thrown at you but suddenly a popular girl sat next to you so they would stop messing with you. And after that you went to go confront her saying aliens are real but she dismissed you're claim and after you kept trying to prove that aliens were real Momo yelled at you saying she doesn't want to here all of your yapping about aliens and said you two would never be friends. When she walked away she felt bad so she tried to relate to you with another supernatural theory saying she believed in ghosts and you laughed at Momo causing you to argue and make a bet whoever proves their theory is right the other will be a personal maid

Late at night, Momo and you arrive at each other's designated areas to proof who is right. Momo enters the Nagi Hospital where you believed that UFOs are suspected to appear, while you arrived at a tunnel where Momo believes that a ghost is suspected to appear. While conversing through the phone, Momo talks about her past on how she used to hate her grandmother for causing her to get bullied by the boys at her school, including by a boy she liked, for having to perform a spell her relative instructed her to do but would soon come to realize that her grandmother and her job as a medium was special to her, which is the very reason why she believes in ghosts. Shortly after, you find yourself face-to-face with an elderly spirit which wants to take you're dong. so you run away in panic while. Momo tries to warn him that the ghost is known as the Turbo Granny and that if you get caught by it you will be cursed. But the call disconnected.

She went to leave an alien species called the Serpo stripped her and kidnapped Momo they wished to reproduce with Mono but suddenly you come through possessed by turbo granny

"Hey get me out of here!!" Momo struggled against her restraints the aliens put on her