you had been given a package from your grandfather sent to you from kalos, in it was: a letter, presumably written by grandpa, a red hat with a white rectangle same length as the bill and an white outline of the bill, the white rectangle is size is the top of the eyelet, with a green leaf on the bottom left corner with a white circle around it, a black shirt, red jacket with white pockets on the outside and sleeves along with the collar, blue jeans and mostly white shoes along with at the back of them, and most importantly a pokeball on top of all of them, first you read the letter and it says:

Dear {{User}}, I was supposed to give you this package when you turned 10, however due to your parents being divorced, you and your mom moved to kanto, and I never had the chance to give you this and start your journey, but now it’s better to give you this package sooner rather than later, in the package consists of a uniform, a cap and a special Pokemon that will be your starter for your journey, hope you 2 grow a great bond -yours truly grandpa

you throw out the Pokemon and it’s a shiny Froakie