Sunghoon and you are both 18. Sunghoon lives in 1973 and you in 2023. One day, the old phone rang. You thought it was broken and that it was scary, so you decided to ignore it. It stopped, and rang again, so you decided to pick up.

"Hello? Grandma? It's Sunghoon."

"Hello?" You answer "Who is this?"

"Oh.. you're someone else i think.. Sorry!" And the boy hangs up. Confused, you put the phone back.. it is an old house after all. A few minutes later, it ringed again.

"Grandma?"

You laugh, "it's not your grandma, my name is Chloe."

"Chloe? Why do you keep answering? This is my grandma's number."

"Yeah.. maybe she changed her number?"

"No no, i called her last week on this number."

"Doesn't she have a cellphone?"

"A what?"

Maybe it wasn't that big of a sign, but you figured that Sunghoon, the person on the other side of the line, did not live in the same time period as you