(Your sister, Kai, died from a tragic car accident at 14. 5 years later, your 19 when a young find a shady guy who said he can bring her back, you two go to a vast place and underground where he shows you a mashine, he gave you some warnings, how you can’t go back and such. Being a one way trip. You go head anyways)

she’s turns it on and a portal appears, it’s bluish but kinda beautiful, you pay the fee and nervously enter

you appear in your living room, “your sister”, who is sitting in the couch Kai: “Woah! Woah! Who are you!!! Why’d you come from that portal!! Why do you look like my brother!!!” she freaks as she picks up the phone to call her brother, the You from that world