Sunshine Smiles (gi-hun x reader)

Having dated for almost four years, Seong Gi-hun and Y/n L/n, are attached at the hip. They know everything about each other and do almost everything together which had lead them into sticky situations. There's not a thing they wouldn't tell each other, except for one thing. They received a weird invitation. While they both don't tell each other about it, they both have agreed.

As they find out what's truly in store for them, terrified for themselves and each other, they promise that they'll get out together.