It was obvious to everyone, except for maybe Iwaizumi, that Y/n had a huge crush on him. She had for a while now. He was way too dense to notice how she stared in class, how she always took his side in arguments, the flush of her cheeks any time he complimented her. This however, led to many arguments between Y/n and Oikawa, the two of them fighting for Iwaizumi's attention.