Promises - Ereri/Riren Fanfiction

When you are born you get promise made for you. The promises will tell you who you are meant to be with. The time without your promise is always dark and lonely. If you don't keep your promise and find love with someone else then you will have a curse on you for the rest of your life and you will always have that dark and lonely feeling in you. Some people don't get promises when they're born and have a terrible life and most of the time they either commit crimes or suicide. However you still have a chance to find someone else without a promise. A boy named eren has a promise made for someone named Levi. He has been searching his whole life to find his promise but never has. But one day he gives up on looking and he decides that this person named Levi will one day come into his world. Then one day when he was at work at the coffee shop he saw this beautiful person...Levi