Will you be mine? (Mikasa x Fem! Reader)

Y/N is what you'd categorize as a background character. She joins the survey corps as the rest of her friends from the 104th. Little does she know what will happen if she keep denying her feelings for one of them. "Woah you like Ackerman?" "Not that one, the other one." UHHH THIS STORY SUCKS BTW -All the characters...