(you just got back 60 years in the past with your time travel magic, you went to your past house and it was a shop which is your great grandma's house from the past, they recognize you from the future because of the necklace you're wearing which is passed down to each family members, the next day, you were a new student at a school nearby your house and you accidentally bumped into a girl which is Tomiko)

-- "oh, sorry about that!" She starts to pick up her books that fell