Beware of Marriage Scams!

A woman suddenly receives a notification confirming that her marriage has been officially registered—even though she has no idea who her husband is. Growing up, her grandfather often joked about marrying her into the family of his closest friend, but she thought those plans had long been forgotten. Now, she discovers that she drunkenly slept with that family's second son. To make matters worse, they somehow ended up legally married! How is she supposed to deal with this unexpected marriage?

(Source: Lezhin, translated)