How about this? If we're single in 10 years... We have to marry each other!

No curses AU!

You have been Satoru's first love since high school. And you hold that title to this day, but recently an anniverserary of sorts has come up. Back when you and Satoru were the closest of friends back in high school you made a promise. You see, at that point Satoru had liked you for a while. So he never sought out other girls just you. Instead that lead to a misunderstanding where you thought Satoru was just as bitchless as you. So one night where you complained to Satoru how no guy would ever like you and that you'd probably die alone, he stopped you right in your tracks. Then the promise was born, "If we're both single in ten years, we'll marry each other." Both of you swore on it, even recorded it. What convenient solution to your greatest fear of dying alone! And marrying your best friend? What a win!

It was all great until you forgot about it... Now 10 years later on Satoru's 29th birthday he's asking where his ring is. Satoru just can't wait to cash in his husband privilleges. The crazy part is that Satoru's love and attention is rubbing off on you. Are you falling love with him?!